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1 


aryland 

99 


9,  No.  17 


iMued  October,  1962 


I  L 


U 


¥ 


Y 


Washingtoii  County 

Maryland 


OUR  SOIL    *    OUR  STRENOTH 


NOTE  TO  THE  REAPER 

The  paper  in  this  volume  is  brittle  or  the 
inner  margins  are  extremely  narrow. 

We  have  bound  or  rebound  the  volume 
utilizing  the  best  means  possible. 

PLEASE  HANDLE  WITH  CARE 


General  Bookbinding  Co..  Chesterland,  Ohio 


UNITED  STATES  DEPARTMENT  OF  AGRICULTURE 
Soil  Conservation  Service 
In  cooperation  with 
MARYLAND  AGRICULTURAL  EXPERIMENT  STATION 


HOW  TO  USE  THE  SOIL  SURVEY  REPORT 


THIS  SOIL  SURVEY  of  Washington 
County  will  help  farmers  in  planning 
the  kind  of  managenient  that  will  protect 
their  soils  and  provide  good  yields;  it 
will  assist  engineers  in  selecting  sites  for 
roads,  buildings,  ponds,  drainage  and 
irrigation  installations,  and  other  struc- 
tures; it  will  assist  those  interested  in 
establishing  or  improving  woodland;  and 
it  will  add  to  our  fund  of  knowledge  about 
soils. 

In  making  this  survey,  soil  scientists 
examined  the  soils  and  noted  features  that 
would  affect  the  suitability  of  the  soils 
for  farming,  woodland  management,  en- 
gineering, residential  developments,  and 
other  uses.  The  scientists  plotted  the 
boimdaries  of  the  different  soils  on  aerial 
photographs.  Then  cartographers  pre- 
pared from  the  photographs  the  detailed 
soil  maps  that  are  at  the  back  of  this  re- 

f)ort.  Fields,  woods,  roads,  and  other 
andmarks  can  be  seen  on  the  maps. 

Locating  the  soils 

On  the  soil  map,  the  boundaries  of  each 
soil  are  outlined  and  each  kind  of  soil  is 
identified  by  a  symbol.  Use  the  index  to 
map  sheets  to  find  out  which  sheet  of  the 
soil  map  shows  the  area  you  wish  to  study. 
The  map  legend  tells  which  soil  each  sym- 
bol stands  for.  All  areas  marked  with  the 
same  symbol  are  the  same  kind  of  soil, 
wherever  they  appear  on  the  map.  Sup- 
pose, for  example,  an  area  located  on  the 
map  has  the  symbol  WbB2.  The  legend 
shows  that  this  symbol  identifies  Waynes- 
boro gravelly  loam,  0  to  8  percent  slopes, 
moderately  eroded.  This  soil  and  all  others 
mapped  in  the  county  are  described  in  the 
section  "Description  of  the  Soils." 

Finding  information 

Different  parts  of  the  report  will  be  of 
special  interest  to  different  groups  of 
readers. 

Farmers  and  those  who  work  with 
farmers  can  get  information  about  the 
soils  from  the  section  "Description  of  the 
Soils,"  and  suggestions  for  agricultural 
management  from  the  section  "Capability 


Groups  of  Soils."  From  the  section  "Esti- 
mated Yields,"  they  can  find  what  yields 
can  be  expected  from  each  kind  of  soil 
under  a  specified  level  of  management. 
Those  interested  in  woodland  manage- 
ment will  find  suggestions  in  the  section 
"Use  of  Soils  for  Woodland." 

Engineers  can  refer  to  the  subsection 
"Engineering  Uses  of  Soils"  in  which  are 
summarized  characteristics  that  affect  the 
suitability  of  the  soils  for  highways, 
sewage  disposal  systems,  and  other  en- 
gineering purposes. 

County  and  community  planners  will 
find  this  report  helpful  in  selecting  sites 
for  industrial  and  residential  develop- 
ments and  sites  to  be  reserved  for  public 
recreation.  So  far  as  practical,  areas  not 
well  suited  to  agriculture  should  be  select- 
ed for  these  purposes.  Information  in  the 
following  subsections  will  be  useful: 
"Capabihty  Groups  of  Soils";  "Use  of 
Soils  for  Woodland" ;  "Engineering  Uses 
of  Soils";  and  "Use  of  the  Soil  Survey 
in  Community  Planning." 

Persons  interested  in  science  will  find 
in  the  section  "Formation  and  Classifica- 
tion of  Soils"  information  about  the  par- 
ent material  of  the  soils  and  the  processes 
that  transformed  them  into  soils.  They 
will  also  find  a  discussion  of  the  classifica- 
tion of  the  soils  of  the  county  into  great 
soil  groups. 

Terms  that  are  likely  to  be  unfamiliar 
to  some  readers  are  defined  in  the  Glos- 
sary. The  "Guide  to  Mapping  Units," 
which  is  at  the  end  of  the  report  with 
the  soil  maps,  shows  the  reader  where  in 
the  report  to  find  information  about  each 
particular  soil. 

★  ★   ★  ★ 

This  soil  survey  was  made  as  a  part  of 
the  technical  assistance  furnished  by  the 
Soil  Conservation  Service  to^  the  Wash- 
ington County  Soil  Conservation  District. 
The  soils  in  the  county  were  mapped 
during  the  period  1940  to  1959,  and  field- 
work  for  the  survey  was  reviewed  and 
revised  in  1959.  Unless  otherwise  indicat- 
ed, all  statements  in  the  report  refer  to 
conditions  at  the  time  fieldwork  was  in 
progress. 


U.S.  60VERNMENT  PRINTINS  OFFICE:  1962 


For  ssAa  by  the  Superintendent  of  Documents,  U.S.  Qovemment  Printing  OflSce  Washington  25,  D.C. 


m  Nc 


Contents 


PaKc 


General  naluro  of  (he  area      I 

Local  ion  anil  extent    1 

I'liysioKrnpliN'  and  relief   1 

Drainage     2 

Settlement  and  population    2 

Transportation  and  markets     2 

Agriculture      .   2 

Crops   2 

Pastures   2 

Livestock  and  poultry   '-i 

Types  and  sizes  of  farms    '-i 

Farm  tenure   3 

Farm  power  and  mechanical  equipment   3 

How  the  soil  survey  was  made   3 

Soils  and  their  relation  to  topography   5 

General  soil  areas   5 

Well-drained,  stony  and  very  stony  soils   5 

1.  Dekalb-Lcetonia-Edgemont-Laidig  association-.  5 

2.  Dekalb- Hightield  association   5 

3.  Hiifhfield- Fauquier  association   5 

Well  to  excessively  drained,  shallow,  medium-textured 

soils   5 

4.  Berks- Monte vallo  association   7 

5.  Hazel-Chandler  association   7 

6.  Talladega  association   7 

7.  Litz-Teas  association   7 

8.  Calvin-Berks-Litz-Montevallo  association   7 

Moderately  well  to  well  drained,  deep,  medium-textured 

soils   7 

9.  Holston-Monongahela-Huntington-Lindside  asso- 

ciation  7 

Well-drained,  deep,  medium-textured  soils   8 

10.  Braddock-Thurmont-Edgemont-Laidig  associa- 

tion  8 

11.  Waynesboro  association   8 

12.  Fauquier-Myersville-Highfield  association   8 

13.  Murrill  association   8 

14.  Hagerstown-Duffield-Frankstown  association   8 

Description  of  the  soils   9 

Ashton  series   13 

Atkins  series   14 

Benevola  series   14 

Berks  series   15 

Braddock  series   16 

Brinkerton  series   17 

Buchanan  series   17 

Calvin  series   18 

Chandler  series   20 

Chewacla  series   20 

Congaree  series   21 

Cory  don  series   21 

Dekalb  series   22 

Duffield  series   23 

Dunniore  series   24 

Dunning  series   24 

Edgemont  series   25 

Elliber  series   26 

Eroded  land   26 

Etowah  series   27 

Fauqiuer  series   28 

Frankstown  series   29 

Frankstown  and  Duffield  soils   29 

Frederick  series   30 

Hagerstown  series   31 

Hazel  series   33 

Highfield  series   34 

Holston  series   34 


De.'cription  of  the  soils — Continued 

Hunt inuton  series   35 

Laidig  series   30 

Landisburg  .series   37 

LargcMit  series   38 

Leadval(!  .series   38 

Leetonia  series     3S 

Lehew  series   39 

Lindside  series   39 

Litz  series   .  10 

Melvin  series   II 

Monongahela  series     41 

Montevallo  series                                                         _  42 

Murrill  series   43 

Myersville  series     44 

Philo  series     45 

Poi)e  series     46 

Rocky  eroded  land     46 

Rohrersville  series   46 

Stony  land   47 

Talladega  series  T   47 

Teas  series  .   48 

Terrace  escarpments   48 

Thurmont  series   48 

Trego  series  >-   49 

Tyler  series   49 

Warners  series   50 

Waynesboro  series   50 

Wehadkee  series   51 

Westmoreland  series   52 

Estimated  yields   52 

Use  and  management  of  soils   62 

Capability  groups  of  soils   62 

Management  by  capability  units   64 

Use  of  soils  for  woodland   81 

Relationships  of  soils  and  forests   82 

Reforestation   82 

Soil  groups  for  forestry   82 

Engineering  uses  of  soils   84 

Engineering  descriptions  and  physical  properties   84 

Soil  interpretations  for  engineering   84 

Soil  groups  for  irrigation   85 

Soil  groups  for  sewage  disposal   113 

Use  of  the  soil  survey  in  community  planning   121 

Formation  and  classification  of  soils   122 

Factors  of  soil  formation   122 

Parent  material   122 

Climate   122 

Living  organisms   123 

Topography   123 

Time  1   124 

Mor])hology  of  soils   124 

Classification  of  soils  by  great  soil  groups   125 

Sols  Bruns  Acides   125 

Podzols   125 

(iray-Brown  Podzolic  soils   125 

Red- Yellow  Podzolic  soils   126 

Reddish-Brown  Lateritic  soils   126 

Planosols   126 

Humic  Gley  soils   126 

Low-IIumic  Gley  soils   126 

Lithosols   127 

Alluvial  soils   127 

Literature  cited   127 

Glossary   127 

Guide  to  mapping  units   130 


Series  1959,  No.  17 


Issued  October  1962 


SOIL  SURVEY  OF  WASHINGTON  COUNTY,  MARYLAND 


SURVEY  BY  BOYD  D.  (JILBEKT,  MEIIL  F.  HERSHBE11(;ER,  R.  S.  LONG.  EARLE  D.  MATTHEWS,  RALPH  E.  RUBLE,  AND 

GLENN  V.  WILSON,  SOU.  SCIENTISTS,  SOIL  CONSERVATION  SERVICE 

REPORT  BY  EARLE  D.  MATTHEWS 

UNITED  STATES  DEPARTMENT  OF  AGRICULTURE  IN  COOPERATION  WITH  MARYLAND  AGRK  ULTURAL 

EXPERIMENT  STATION 


General  Nature  of  the  Area 

AA'asliiiiotoii  leads  the  (■ounties  of  JNIarvlaiid  in  fruit 
l)i'<)(luction.  Jt  ranks  fifth  in  the  kState  in  dairviu<;  and 
sixth  in  livestock  other  than  dairyina'.  In  1954,  Wasli- 
inoton  Comity  ranked  fourth  in  the  State  in  value  oF  all 
farm  products  sold  (6')/  It  has  a  well-balanced  and 
prosperous  agricultural  economy.  There  may  he  many 
reasons  for  this,  but  one  of  the  most  important  is  the 
large  proportion  of  highly  pi'odnctive  and  well-managed 
soils. 

The  county  is  well  suited  to  intensive  agriculture.  More 
than  6()  [)ercent  of  the  acreage — about  178,0()()  acres — is 
suitable  for  regular  cultivation.  About  15  percent — i5,- 
000  acres — is  more  limited  but  is  suitable  for  some  cul- 
tivation. About  12  percent — 35,000  acres — is  not  well 
suited  to  crops  but  is  good  for  pasture.  The  remaining 
13  percent  of  the  county  is  mostly  rough,  very  rocky  or 
stony,  and  in  some  places  severely  eroded.  Much  of  it  is 
mountainous  and  is  suitable  for  no  more  intensive  use 
than  forestry.  About  1  percent  of  the  county  is  so  steep 
and  stony  that  even  forest  management  would  be  uneco- 
nomical and  impractical. 

Washington  County  is  in  the  west-central  part  of 
Maryland.  Its  climate  is  favorable  for  general  farming, 
li^'estock  and  dairy  farming,  and  fruit  production.  Its 
broad  limestone  valley  is  one  of  the  best  agricultural 
areas  in  the  East.  However,  there  has  been  some  trend 
toward  suburban  development,  particularly  around  Ha- 
gerstown,  the  county  seat  and  lai'gest  city,  where  con- 
siderable industrialization  has  occurred. 

Location  and  Extent 

Washington  County  (fig.  1)  is  in  the  narrowest  part 
of  the  western  arm  of  the  State,  where  it  is  only  a  very 
few  miles  across  Maryland  from  Pennsylvania  "to  West 
Virginia.  The  county  is  narrow  in  the  middle,  somewhat 
enlarged  to  the  west,  and  greatly  enlarged  to  the  east. 
It  is  bounded  on  the  west  by  Allegany  County,  on  the 
east  by  Frederick  County,  on  the  north  by  Pennsylvania 
along  the  Mason-Dixon  line,  and  on  the  south  by  the 
Potomac  River.  To  the  south,  across  the  Potomac.  Wash- 
ington County  faces  parts  of  both  Virginia  and  West 


^Numbers  in  italics  in  pareiitlieses  refer  to  Literature  Cited, 
page  127. 


Figure  1. — Location  of  Washington  County  in  Maryland. 


Virginia.  The  land  area  is  about  -IGi  square  miles,  or 
295,680  acres.  This  is  the  eighth  lai'gest  county  in  the 
State,  and  it  also  ranks  eighth  in  the  proportion  of  land 
occupied  by  farms  (0). 

Physiography  and  Relief 

Washington  County  includes  part  of  the  western  slope 
of  the  Blue  Ridge;  the  broad  Hagerstown  Valley,  which 
is  part  of  the  Great  Limestone  Valley  system  of  the 
Eastern  States;  and  a  part  of  the  Appalachian  ^lountain 
system.  The  Hagerstown  Valley  forms  the  eastern  and 
central  parts  of  the  county,  between  the  Blue  Ridge  and 
the  Appalachian  ridges  and  valleys.  The  highest  point 
in  the  county  is  the  crest  of  Quirauk  Mountain  of  the 
Blue  Ridge,  which  has  an  elevation  of  2,1-15  feet.  The 
Blue  Ridge  is  steep.  The  Appalachian  part  of  the  coun- 
ty is  a  series  of  narrow  ridges,  which  extend  in  a  gen- 
eral northeast -southwest  direction  and  are  separated  by 
narrow  valleys.  In  the  Appalachian  area  there  are  three 
outstanding  ridges:  Bear  Pond  Mountain  at  2,000  feet, 
Fairview  Mountain  at  1,700  feet,  and  Sideling  Hill  at 
1,600  feet. 

The  Hagerstown  Valley  occupies  more  than  half  of  the 
county.  It  ranges  in  elevation  from  about  300  feet  near 
the  Potomac  River  to  about  (iOO  feet  at  the  Pennsylvania 
line.  The  valley  tloor  is  nearly  level  to  rolling,  with  some 
local  hills  and  ridges. 


1 


2 


SOIL   SUIUKY   SKKIKS    1959.   NO.  17 


Along  the  streams  :uul  rivers  of  the  county,  there  are 
large  areas  of  alluvial  terraces  and  flood  plains.  The 
flood  plains  are  nearly  level  and  lie  just  above  the  normal 
stages  of  the  streams.  The  terraces  are  older  flood  plains, 
now  considerably  above  the  streams  and  rivers. 

Drainage 

Washington  County  is  entirely  within  the  drainage  sys- 
tem of  the  l^otoniac  Kiver  and  is  traversed  by  a  number 
of  streams  that  flow  generally  southward.  The  most  im- 
l)ortant  of  these  are  Israel  Creek,  Antietam  Creek,  Little 
Antietam  Creek,  JMarsh  Run,  Downey  Branch,  Lanes 
Run,  Conococheague  Creek  and  its  tributaries.  Licking 
C^reek,  Tonoloway  Creek,  and  Little  Tonoloway  Creek. 
Another  important  stream  is  Sideling  Hill  Creek,  which 
forms  the  boundary  with  Allegany  ("ounty. 

From  the  standpoint  of  both  soils  and  land  conditions, 
Washington  County  is  genei-ally  well  drained.  Some 
poorly  drained  and  very  ])0()rly  drained  areas  exist,  but 
they  are  small  and  generally  unim])ortant.  There  are  no 
true  swamps  or  marshes  in  the  county. 

Settlement  and  Population 


Agriculture 


The  original  settlers  of  Washington  County  came 
mostly  from  other  parts  of  the  colonies  and  were  of 
English,  Scotch,  and  Swiss  descent.  There  were  also 
some  settlers  from  Alsace  and  other  jiarts  of  northern 
France.  Later  immigrants  included  pei'sons  of  (lerman, 
Dutch,  and  Scotch-Irish  nationality.  Some  farms  were 
established  in  the  county  by  1735. 

The  county,  which  at  first  included  all  of  western 
jNIaryland,  was  created  in  1776.  By  1800,  the  county  was 
comi)arati vely  well  settled,  with  connnercial  centers  at 
Hagerstown  and  Williamsport.  Early  industry  included 
many  mills  along  Conococheague  Creek  and  Antietam 
Creek. 

In  1790,  the  population  of  Washington  (^ountv  was 
15,822.  By  1820,  it  was  23,720.  In  1910.  the  total  popvda- 
tion  of  the  county  was  49,(517  of  which  two-thirds  was 
rural.  The  population  of  the  county  in  1950  was  78,880. 
The  estimated  population  of  the  county  in  1955  was 
84,181.  The  official  census  of  1900  should"  show  an  addi- 
tional increase.  The  population  of  Hagerstown  in  1950 
was  36,260. 

Transportation  and  Markets 

Washington  County  has  excellent  transportation  facili- 
ties. Federal  and  interstate  highways  serve  nearly  all 
parts  of  the  county  and  connect  the  county  with  other 
important  areas.  There  is  a  good  network  of  paved 
county  and  State  roads  and  other  all-weather  roads.  Rail- 
roads serving  the  county  are  the  Baltimore  and  Ohio, 
the  Western  Maryland,  the  Norfolk  and  Western,  and 
the  Pennsylvania.  Hagerstown  has  air-transportation 
facilities. 

Many  agricultural  products  are  marketed  within  the 
county.  Other  markets  of  importance  are  Baltimore: 
Washington,  D.C. ;  and  Pittsburgh,  Philadelphia,  Har- 
risburg,  and  Lancaster  in  Pennsylvania. 


Large  areas  of  fertile  and  responsive  soils  and  a  tem- 
perate climate  with  faii'ly  well  distributed  i-aiiifall  and 
a  fairly  long  growing  season  are  fa\()ral)le  to  agriculture 
in  Washington  County.  Most  of  the  soils  ai-e  well  suited 
to  general  farming  and  to  livestock  production,  and  some 
soils  are  especially  well  suited  to  fruit  farming.  Agricul- 
ture is  dixei-sified,  aud  the  economic  level  of  agi-icultui'e  is 
high. 

In  the  following  jjages,  facts  about  crops  grown  in 
the  county,  pastures,  livestock  and  poultry,  types  and 
sizes  of  fai-uis,  farm  tenure,  aiul  farm  power  and  me- 
chanical e(|uipment  are  discussed.  The  statistics  used  are 
from  reports  puhlislied  by  the  I '.S.  Bureau  of  the  Census. 

Crops 

Data  from  the  census  of  1954  on  acreages  of  the  most 
important  held  crops,  numbers  of  fruit  trees,  and  num- 
bers of  berry  farms  are  given  in  table  1.  In  1954,  the  most 
extensiv^e  field  crop  in  the  county  was  corn  for  grain. 
Other  crops  are  wheat  for  grain;  clover,  timothy,  and 
mixed  hay;  and  alfalfa.  Outstanding  in  the  county  are 
the  orchard  crops;  Washington  County  leads  the  State 
in  production  of  apples,  peaches,  plums,  and  cherries. 
( I  rapes,  strawl)erries,  and  miscellaneous  berries  are  also 
important  crops.  The  total  croi)land  harvested  in  1954 
was  104,009  acres,  or  35  percent  of  the  county  area. 
Washington  ('ounty  was  third  in  the  State  in  total  crop- 
land harvested. 

Table  1. — Acreage  of  principal  crops  and  numbers  of  fruit 
trees,  (jrapevines,  and  herry  farms  in  1954 


Crop 


C!orn  for  grain  

Corn  for  silage  

Wlieat  harvested  

Oats  harvested  

Barley  harvested  

Alfalfa  hay  

Clover,  timothy,  and  mixed  hay 
\'egetab!es  for  sale  

Apple  trees  of  all  ages  

Peach  trees  of  all  ages  

Prune  and  plum  trees  of  all  ages 

Cherry  trees  of  all  ages  

Pear  trees  of  all  ages  

Grapevines  of  all  ages  

Farms  producing  strawberries  

Farms  producing  other  berries  „. 

Strawberries  harvested  


Pastures 

A  total  of  00,204  acres  was  grazed  in  1954.  Of  this 
total,  21,096  acres  was  cropland  used  temporarily  for 
pasture,  and  8,004  acres  was  grazed  w'oodlands.  This 


Rank  in 
State 


Acres 

23,  912 

9 

6,  269 

3 

1 7,  .592 

3 

.5,  812 

4 

8,  980 

2 

12,  422 

2 

14,  900 

7 

979 

16 

Number 

267, 213 

1 

156, 676 

1 

9,  738 

1 

8,  624 

1 

1,  990 

2 

868 

7 

52 

7 

126 

3 

Qiinrts 

27.  000 

5 

WASHINGTON  COUNTY.  MARYLAND 


'4 


leaves  30,564  aiTos,  prosuiiiiibly  in  pci-iiKmcnl  pasi iires, 
most  of  which  are  iinpi-ovod. 

Livestock  and  Poultry 

The  <>oner:il  nature  and  the  (li\ersilicatiou  of  a<i;i'icul- 
ture  in  A\'asIiinot()n  County  are  enipliasized  by  the  data 
on  livestock  and  j)ouhry  in  tal)le  2.  Livestock  and  poul- 
try are  highly  inii)ortant  parts  of  (lie  a<i;ricult ure.  Not 
shown  in  the  table  is  the  fact  that  most  kinds  of  livestock 
increased  in  number  and  in  value  between  1949  and 
1954.  Exceptions  were  horses,  mules,  swine,  and  sheep. 


Tahle  2. — Number  and  mine  of  livestock  and  poultry  and 
their  products  in  WSJ). 


Rank 

Value 

Hank 

Livestock  and  livestock  products 

Xiniiber 

in 

in 

in 

State 

dollars 

State 

Cattle  and  calves  on  farms  

40,  489 

5 

0) 

(') 

.   Milk  cows    

18,  267 

3 

(') 

(') 

Heifers  and  heifer  calves 

12, 318 

5 

(') 

(') 

Cattle  and  calves  sold  alive  

19,  140 

5 

0) 

(') 

3 

Whole  milk  sold  

(') 

(') 

4,2.53,510 

Cream  sold  

(') 

(') 

33,  383 

4 

Horses  and  tnules  on  farms 

1,  245 

6 

(') 

(') 

Hogs  aiifl  |)ii!;s  on  farnis_ 

17,  149 

3 

(') 

(') 

Hogs  and  pi^s  sold  alive 

17,  581 

3 

577,  857 

5 

Sheep  and  lambs  on  farms. . 

4,  267 

3 

(') 

(■) 

Sheep  and  lambs  sold  alive  . 

2,  889 

3 

44,  579 

3 

Chickens  (over  4  months)  on 

hand-_  .   _  . 

157,  832 

3 

(') 

Broilers  sold  

478,  378 

7 

363,  904 

7 

Other  chickens  sold.  . 

87,  911 

3 

92,  225 

1 

Chicken  eggs  sold — dozens 

989,  443 

3 

391,  475 

3 

Turkeys  raised 

18,  675 

9 

(') 

(') 

Ducks  raised 

2,  977 

6 

(') 

(') 

Value  of  poultry  and  products 

sold                        .  _  _  . 

(') 

(') 

949, 578 

6 

'  Not  reported. 


Types  and  Sizes  of  Farms 

In  1954,  213,104  acres,  or  about  72  percent  of  the 
county,  was  in  farms.  There  were  1,934  farms  having 
an  average  size  of  about  110  acres.  Of  the  land  in  farms, 
133,849  acres  was  classed  as  cropland.  Nearly  83  percent 
of  this  cropland  was  used  for  corn,  small  grains,  hay 
crops,  or  pasture,  leaving  only  about  17  percent  for  all 
other  crops. 

As  to  types  of  farms,  dairy  farms  were  tlie  most 
common,  35  percent  being  so  classified.  A  total  of  10  per- 
cent was  listed  as  other  livestock  farms,  6  percent  as 
cash-grain  farms,  about  5  percent  as  poultry  farms,  and 
3  percent  as  fruit  farms.  The  remaining  farms  were 
listed  as  miscellaneous  or  unclassified. 

In  1954,  there  were  287  farms  of  less  than  10  acres 
each.  Then  there  were  474  farms  of  10  to  49  acres,  321 
farms  of  50  to  99  acres,  824  farms  of  100  to  499  acres, 
and  only  28  farms  of  500  or  more  acres.  There  were 
1,?,25  commercial  farms,  215  part-time  farms,  and  490 
residential  farms.  The  rest  were  unclassified  as  to  status. 


Farm  Tenure 

Full  owners  operaltul  72  percent  of  the  farms  in  1954. 
In  addition,  9  percent  weie  operated  by  part  owners, 
about  18  percent  by  tenants,  and  less  than  1  percent  by 
managers.  Most  tenancy  was  by  shares,  but  somewhat 
more  than  30  percent  was  on  a  cash  basis. 

Farm  Power  and  Mechanical  Equipment 

In  1!)54,  1,245  horses  and  mules  were  on  59S  fai'ms. 
Although  these  animals  are  used  mainly  for  workstock, 
mechaiiized  eqiupment  is  more  important  than  horses  and 
nudes  on  the  average  farm. 

There  was  a  total  of  2,257  tractors  reported  on  1,360 
farms.  Mostly  of  the  wlunded  variety,  these  were  used 
for  nearly  all  farm  operations.  Included  were  352  garden 
tractors  and  42  tractors  of  ci-awler  type.  Also  reported 
on  farms  in  1954  were  1,201  trucks,  2,199  automobiles, 
324  pickup  hay  balers,  302  cornpickers,  and  126  foriige 
harvesters.  In  addition,  milking  machines  were  reported 
on  578  farms  and  i)ower  feed  grinders  on  534  farms. 


How  the  Soil  Survey  Was  Made 

Soil  scientists  examined  soils  in  every  field  and  parcel 
of  land  in  the  county.  To  examine  the  subsoil  and  cleeper 
layers,  they  bored  holes  with  an  auger  or  dug  with  a 
spade.  They  also  studied  soils  in  banks,  roadcuts,  and  in 
pits  and  other  excavations. 

Each  boring  or  hole  reveals  a  soil  profile.  Each  profile 
consists  of  one  or  more  distinct  layers,  called  horizons, 
over  a  substratum  of  hard  or  soft  rock,  gravel,  river 
sediments,  or  some  other  material.  Soil  scientists  desig- 
nate different  kinds  of  horizons  by  capital  letters.  The 
A  horizon  is  the  upper  layer  just  beneath  the  leaf  litter 
or  the  vegetation.  It  consists  of  the  surface  soil  and,  in 
some  places,  a  subsurface  soil.  The  B  horizon  is  a  subsoil 
that  has  developed  as  a  result  of  the  processes  of  soil 
formation.  The  C  horizon  is  the  parent  material  from 
which  the  soil  has  been  formed.  The  D  horizon  is  a 
substratum  beneath  the  C  horizon,  or  beneath  the  A  or 
the  B  horizon  if  some  of  the  other  layers  are  missing. 
It  may  not  be  the  same  kind  of  material  as  that  from 
which  the  soil  itself  has  been  formed. 

Each  major  horizon.  A,  B,  C,  or  D,  may  consist  of 
one  to  many  minor  horizons  or  subhorizons,  each  dif- 
ferent from  the  other.  Thus,  one  soil  may  have  Aj,  Ao, 
B21,  B22,  and  C  horizons;  another  soil  may  have  A,,  BC, 
and  D,.  horizons;  and  yet  another,  Ai,  Bj,  B2,  C,  and  D 
horizons.  The  properties  and  thicknesses  of  the  various 
horizons  and  their  arrangement  help  to  characterize  and 
classify  the  soil. 

Properties,  such  as  texture  and  color,  generally  vary 
in  the  different  horizons  of  soil.  In  Washington  County 
the  surface  layer  in  most  soils  is  darker  in  color  than  the 
lower  layers;  the  subsoil  layers  are  brighter  and  more 
intensely  colored;  and,  in  the  lower  horizons,  mottled 
colors  may  be  present.  The  characteristics  described  in 
the  following  paragraphs  ai-e  among  the  more  important 
ones  considered  by  soil  scientists.  Soils  are  described 
according  to  the  "Soil  Stirvey  Manual"  (9). 


4 


SOIL   SURVEY  SERIES    10  5  9,  NO.  17 


Texture  refers  lo  (lie  coiiIchI  hI'  clay,  silt,  and  saml. 
Texture  is  judged  l)y  the  feel  and,  lo  some  extent,  l)y  the 
appearanc^e  of  tlie  soil,  and  also  can  be  checked  by  me- 
chanical analysis  in  the  laboratory.  The  finest  pai'ticles 
are  clay.  Individual  clay  particles  are  so  fine  that  they 
can  scarcely  be  seen  throuji'li  a  microscope.  Soils  that, 
consist  pi-incipally  of  clay  are  typically  plastic  and  sticky 
when  wet  and  lalhci-  iiard  wlien  dry.  A\'aler  moves 
slowly  thi-()U!ih  clay  soils.  These  soils  retain  moisture 
and  plant  mil  rients  well. 

Medium-sized  particles,  lar<>-e  enouo-fi  to  be  seen  with 
a  microscope,  are  called  silt.  Hilty  soils  are  smooth  and 
velvety,  and  some  are  silky  to  the  touch.  They  are  usually 
not  so  hard  when  dry,  wov  so  sticky  and  plastic  when 
wet,  as  clay  soils. 

The  lai'<>'er  particles,  smaller  than  <2;ravel,  are  called 
sand.  lndi\idual  saiul  particles  can  be  seen  with  the 
naked  eye.  AVatei'  moves  ra])idly  lhi-ou<ih  sandy  soils, 
but  such  soils  i-etain  relatively  little  watei-  for  plants. 
]\lany  soils  of  Washin<^ton  County  also  contain  <i-ravel, 
and  some  contain  stones.  Some  ai'eas  ha\e  many  out- 
croppinii's  of  rock.  altlH)Ui:h  these  do  not  directly  aft'ect 
the  soil  texture. 

MOvSt  soils  contain  variable  amounts  of  clay,  silt,  and 
sand.  Few  soils  anywliei-e  are  pui'e  silt  or  ])nre  sand,  and 
none  ai-c  known  that  are  pniv  clay.  Within  any  one 
soil,  the  dill'erent  horizons  may  have  dill'ei'cnl  pi'opoi'- 
tions  of  clay,  silt,  ami  sand. 

Stnrcfiire  is  the  arraniivment  of  individual  soil  i)arti- 
cles  into  clumps  or  a<i<iivgates.  Some  soils  are  loose  and 
crumbly;  others  can  be  broken  down  into  small  block- 
like clods;  and  still  others  may  have  small,  flattened, 
platelike  a<><>re<i"ates.  The  structuic  of  a  soil  helps  deter- 
mine whether  ail',  watei-,  and  plant  roots  can  ])enetrate 
it  easily  or  with  dilHcidty.  Structure  varies  between  soils, 
and  sometimes  it  is  (piite  dilbu-ent  in  the  vai-ious  horizons 
of  the  same  soil. 

(hilar  indicates  other  soil  properties.  The  darker  col- 
ored soils  ai'e  <>enerally  hi<>-her  in  or<>-anic  matter  than 
the  liiihter  colored  soils.  Other  thina-s  l)ein<i-  ecjual.  they 
are  more  productive  and  moi'e  easily  tilled  than  the 
lighter  colored  soils.  Color  also  indicates  the  decree  of 
natural  draina<ie  in  a  soil.  In  AA'ashin<rton  County  well- 
drained  soils  ai-e  normally  ivddish  bi'ovvii,  yellowish 
brown,  brownish  yellow,  reddish  yellow,  yellowish  red, 
or  red.  Poorly  drained  soils  have  subsoils  that  are  gray 
and  generally  are  mottled  with  brown,  yellow,  or  red. 
Intermediate  classes  of  natural  drainage  are  defined  ac- 
cording to  the  amount  and  location  of  mottling. 

Wetness  of  an  area  and  the  color  of  the  soil  and  its 
position  in  the  landscape  are  factors  that  indicate  degree 
of  drainage.  In  Washington  County  there  is  a  wide 
variation  in  drainage,  and  this  variation  is  a  major  cause 
of  ditl'erences  in  crop  suitability  and  otlier  properties. 
The  terms  used  to  denote  the  successive  grades  or  degrees 
of  soil  drainage  are  exeesni vely  draiyiefl,  someivhat  ex- 
cess'iveh/  drained,  irell  drained,  moderately  well  d/rained. 
someudiat  poorly  drained,  poorly  drained,  and  very 
poorly  drained. 

Acidity  and  other  chemical  properties  indicate  the 
ways  in  which  the  soils  were  formed  and  how  productive 
the  soils  may  be. 


Dilb'icnt  combinations  of  these  soil  characteristics  are 
the  bases  for  sepai'ating  one  soil  from  another.  In  de- 
termining the  kinds  of  soil  mapped  in  the  county,  com- 
binations of  soil  propei'ties  are  em])hasize(l  that  are  im- 
portant in  agriculture  and  in  other  soil  uses  aiul  numage- 
ment.  The  kinds  of  soil  aic  then  grouped  into  soil 
series,  types,  and  phases. 

A  Hoil  series  is  a  group  of  soils  that,  except  for  the 
texture  of  the  surface  layer,  have  the  same  profile  charac- 
teristics and  the  same  genei-al  range  in  color,  structure, 
consistence,  and  secjuence  of  horizons.  All  soils  of  the 
same  sei-ies  have  developed  from  the  same  kind  of  parent 
nialei-ial.  \'ariations  in  slope  or  in  other  features  are 
pei'milted  so  long  as  such  variations  do  not  all'ect  the 
piofile  characteristics.  Each  soil  series  is  given  a  name 
that  is  generally  taken  from  the  locality  where  the  series 
was  first  recognized  and  described.  Thus,  Hagerstown 
soils  make  up  a  A-ery  impoi-(ant  series  that  was  first  de- 
scribed and  recognized  in  Washington  (bounty  many 
years  ago. 

A  soil  type  is  a  subdivision  of  a  soil  series.  The  tex- 
ture of  the  surface  soil  determines  the  type  within  a 
series.  A  series  may  consist  of  only  one  or  of  many  types. 
Thus,  I*o])e  fine  sandy  loam  and  Pope  silt  loam  are  soil 
types  within  the  Pope  series. 

^"ariations  within  a  soil  type — chiefly  in  such  external 
characteristics  as  surface  slojje,  stoniness,  or  accelerated 
erosion — are  designated  as  xoil  pliases.  Waynesboro 
gravelly  loam,  S  to  15  percent  slopes,  moderately  eroded, 
and  A^'aynesl)oro  gra\elly  loam,  15  to  25  ])ercent  slopes, 
severely  eroded,  ai'e  (wo  of  the  phases  named  according 
to  slope  and  degree  of  erosion  within  the  soil  type, 
Waynesboro  gravelly  loam,  in  Washington  County.  If 
erosion  has  been  negligible  or  slight,  it  is  not  mentioned 
in  the  soil  phase  name,  but  if  it  has  been  nmderate,  severe, 
or  very  severe,  the  soils  are  so  named.  When  this  i-eport 
mentions  this  oi-  that  "soil"  it  i-efei-s  to  the  soil  phase, 
vv  liich  is  the  mapping  unit  used  in  Washington  County. 

The  teims  gravelly,  channery,  shaly,  stony,  or  rocky 
also  are  used  to  describe  phases  of  soil  types.  For 
example,  one  of  the  soils  shown  on  the  map  is  Hazel 
channery  silt  loam,  10  to  20  percent  slopes,  severely 
eroded. 

Some  of  the  soil  mapi)ing  units  contain  more  than  one 
kind  of  soil.  Inclusions  of  less  than  15  percent  of  dif- 
ferent, or  even  of  conti-asting  soils,  are  not  indicated  in 
the  soil  name.  Significant  inclusions  are  mentioned  in 
"Description  of  the  Soils." 

A  few  mapi)ing  units  consist  of  two  or  more  kinds 
of  soil  so  intricately  mixed  that  the  separate  bodies  of  4 
them  cannot  be  shown  at  the  scale  of  map])ing.  Such 
mixed  areas  are  called  soil  complexes.  An  example  is 
the  mapping  unit  called  Calvin-Berks  channery  loams, 
0  to  10  percent  slopes,  moderately  eroded. 

Another  kind  of  mapping  miit  contains  two  or  more 
soils  that  are  similar  and  that  were  not  mai)ped  sepa- 
rately. An  example  is  the  mapping  unit,  P^dgemont  and 
Laidig  very  stony  loams,  0  to  5  percent  slopes. 

Some  of  the  mapping  units  are  not  true  soils  but  can 
be  called  land  types.  Examples  are  Rocky  eroded  land, 
Stony  steep  land,  and  Terrace  escarpments. 


WASHINGTON  COUNTY,  MARYLAND 


Soils  and  Their  Relation  to  Topography 

The  soils  of  \\';ishin<;l()n  ("oimly  I'aii  he  coiisidori'd  in 
four  hi-oad  i^roups  iU'coiHliii^'  lo  their  position  on  (he 
landscape.  Tlu'V  are  soils  of  tlie  uplands,  soils  oF  old 
colluvial  deposits,  soils  of  the  old  stream  terraces,  and 
soils  of  the  Hood  plains,  ^^'ithin  these  broad  (opo<irapliic 
•groups,  the  soils  vary  accordin*^-  to  the  ])aren(  niatei'ials 
from  which  they  developed  and  according  to  their  drain- 
age. Table  3  shows  these  relationships  among  the  soil 
series  in  the  county. 

aSV^/Av  of  Ihc  II />/ini(/s.-  About  71  i)ercent  of  the  laiul 
area  ol"  tlie  county  consists  ol'  uplands.  The  soils  there 
de\eloped  in  place  fi'om  materials  weathered  from  the 
underlying  rock. 

iSoi/<s  of  old  coll u rial  deposits. — About  Ki  i)ercent  of 
the  county  area  consists  of  soils  that  developed  on  ma- 
terials transported  by  gravity.  These  materials  have 
moved  down  the  sides  of  slopes,  Hlling  many  depressions 
and  drainageways,  and  spreading  fanlike  over  valley 
floors.  In  places  they  cover  areas  that  extend  ontward 
for  a  considerable  distance  from  the  area  where  they  origi- 
nated. Thus,  the  soils  in  those  places  were  not  developed 
from  materials  weathered  from  the  miderlying  rocks. 

Soils  of  old  stream  terraces. — These  soils  are  mostly 
on  old  high  terraces  along  the  Potomac  River,  althongh 
some  are  on  terraces  of  some  of  the  larger  creeks.  The 
terraces  were  once  flood  ])lains,  bnt  they  are  well  above 
the  present  stream  channels,  and  some  are  at  a  considei'a- 
ble  distance  from  the  i)resent  streams.  Alluvium  was 
deposited  on  these  flood  plains  when  the  streambeds  were 
at  a  higher  level  than  at  pi'esent.  The  soils  on  these 
old  terraces  make  up  about  5  percent  of  the  comity. 

Soils  of  the.  food  plain-s. — The  alluvial  deposits  on 
flood  plains  are  fairly  recent.  jNlost  of  these  areas  are 
still  flooded  at  times.  In  many  places  the  soils  do  not 
contain  developed  horizons,  but  in  some  places  a  weak  V> 
horizcm  has  developed.  The  kind  of  soil  depends  chiefly 
on  the  kinds  of  rocks  and  soils  from  which  the  material 
was  washed,  and  on  the  drainage.  These  soils  of  the  flood 
plains  m.ake  up  the  remaining  8  percent  of  the  county. 

General  Soil  Areas 

In  a  county  or  other  large  area,  it  is  fairly  easy  to 
see  differences  in  the  landscape  ivom  place  to  place.  Some 
of  the  more  obvious  difl'erences  are  in  the  shape,  steep- 
ness, and  length  of  slopes;  in  the  width,  volume,  and 
speed  of  streams  and  the  size  and  shape  of  their  valleys; 
and  in  the  kind  and  vigor  of  wild  vegetation  and  of  the 
ci-ops  and  pastures.  Less  obvious  difl'erences  are  in  the 
kinds  of  soils  that  have  developed  and  the  patterns  in 
which  they  occur  in  the  landscape. 

By  drawing  lines  around  the  difterent  patterns  of 
soils  on  a  small  map,  we  get  a  general  map  of  the  soils. 
Such  a  map  is  useful  to  those  who  want  a  general  idea 
of  the  soils,  who  want  to  compare  different  parts  of  the 
county,  or  who  want  to  locate  large  areas  suitable  for 
some  particular  kind  of  farming  or  other  general  use. 
It  does  not  show  accurately  the  kinds  of  soils  on  a  single 
farm  or  small  tract. 

In  "Washington  County  there  are  14  general  soil  pat- 
terns, called  soil  associations.   These  are  shown  on  the 


colored  general  soil  map  at  the  back  of  this  rejjorl.  Each 
association  is  named  for  the  dominant  soil  .series.  Tlie  14 
associations  tuv  grouped  into  I  divisions,  according  to 
di'ainage  and  de|)lli  of  I  he  soils. 

Well-Drained,  Stony  and  Very  Stony  Soils 

This  division  occupies  about  10  pei-cenl  of  the  county. 
It  contains  tlwee  soil  associations,  which  are  on  high 
ridges  and  low  mountains,  from  South  Mountain  in  the 
east  to  Sideling  Hill  in  the  west. 

/.    Dekalh-Leelonia-Edgemont-Laidifj  uHsocUdion 
(Very  stoni/,  mountainous  .soils) 

This  soil  association  consists  of  motlerately  coarse  tex- 
tured to  medium  textured,  very  stony  soils  developed 
from  sandstones  and  quartzites.  Most  of  the  soils  are 
fairly  shallow  to  bedrock.  The  dominant  soils  ai-e  those 
of  the  Dekalb,  Leetonia,  Edgemont,  and  T>aidig  series, 
but  small  areas  of  other  soils  are  included.  liesides  being 
shallow  and  stony,  these  soils  are  mostly  on  sleep,  moun- 
tainous terrain,  are  sti'ongly  to  very  strongly  acid,  and 
are  rather  low  in  fertility  and  productivity. 

These  soils  are  probably  more  suitable  for  forestry  and 
wildlife  than  for  more  intensive  agricultural  uses,  but 
this  does  not  mean  that  they  are  good  forest  soils.  In 
fact,  forest  operations  may  not  be  economically  feasible 
on  some  of  the  rougher  and  stonier  areas.  This  asso- 
ciation occupies  about  8.6  percent  of  the  county. 

2.  Dekalb-High  field  association 
(Very  steep,  stony  soils) 

This  soil  association  consists  of  very  stony  soils  of  the 
Dekalb  and  Highfield  series,  developed  on  sandstone  and 
greenstone  ( nietabasalt) ,  respectively.  "Where  the  High- 
field  soils  dominate,  these  stony  soils  are  somewhat  deejjer 
and  more  productive  than  those  of  the  Dekalb-Ix'etonia- 
Edgemont-Laidig  association. 

Except  in  the  vei-y  steepest  mountainous  parts,  this 
Dekalb-IIighfleld  association  should  be  of  economic  use 
for  forests  or  timber  products.  It  is  too  stony  for  cul- 
tivation or  for  any  but  very  limited  grazing.  This  asso- 
ciation makes  up  al)out  (>.(>  percent  of  the  comity. 

3.  Highfield-Fauquier  association 
(Deep,  stony  soils) 

This  association  is  of  deep,  stony  soils  developed  al- 
most entirely  from  greenstone  or  nietabasalt.  Although 
these  soils  are  too  stony  for  crops  or  for  very  intensi^'e 
grazing,  they  have  considerable  depth,  comparatively 
low  acidity,  ami  fair  fertility  and  productivity.  Thus, 
they  probably  make  up  the  hest  group  of  soils  limited 
in  use  mainly  to  forestry,  and  timber  production  on  them 
should  be  economically  feasible.  This  association  makes 
up  about  1.1  percent  of  the  county. 

Well  to  Excessively  Drained, 
Shallow,  Medium-Textured  Soils 

This  second  major  division  of  soil  associations  makes 
up  about  one-fourth  of  the  entire  county.  This  division 
is  not  confined  to  mountainous  areas,  but  it  is  fairly  well 
distributed  in  various  parts  of  the  county.  Where  the 


SOIL  SURVEY  SERIES    1959,   NO.  17 

Tahle  3. — Relationships  of  the  soi/  series  according  to  topographic  position,  parent  material,  find  drainage 


Position  and  parent  material 


Uplands: 

Metainori)hic  rocks: 

Motabasalt  (greenstone) . 


.Micaceous  schists  and  pii yllites_ . 

(Juartzite  or  (|nartzitic  sandstone 
Consolidated  sedimentary  rocks: 
Neai'ly  pure,  massive  limestone_ 
Mmestone  and  shale  


Chert  \-  limestone _ 


Very  cliert y  limestone  

Sandy  or  arenaceous  limestone 
Iligh-calcium  ;ir<iillaceous  lime- 
stone. 

Interbedded     limestone,  sand- 
stone, and  shale. 
Slifihtiy  calcareous,  gray  shales 
Slightly   calcareous,    red  shales 

and  sandstones. 
Acid,  gray  to  yellow,  hard  shales 
Acid,  yellow  to  brown,  soft  shales 
Acid,  red  shales  and  sandstones. 

Avid,  red  sandstones  

(Jray  to  yellow,  coarse-grained, 
acid  sandstones. 
Old  collu\  ial  deposits: 

Crvstalline  rock  materials  


Sandstone  materials  

Sandstone  and  shale  over  lime- 
stone materials. 

Clierty  limestone  materials  

Acid  shale  mateiials  

Old  stream  terraces: 

Limeston(>  materials  


Acid  sandstone  and  shale  ma- 
terials. 

Bottom  lands  and  Hood  plain.s: 

Crystalline  rock  materials  

Gray,  yellow,  and  brown  sand- 
stone and  shale  materials. 
Red  sandstone   and   shale  ma- 
terials. 

Limestone  materials  

]\Iarl  deposits  


I  )rainage  class 


Excessively 
drained 


Hazel. 


Litz, 
Teas. 


Montevallo. 


Lohow  

Dekalb, 
Leetonia. 


Somewhat 
excessively 
drained 


Chandler  


Corydon . 


Litz- 
Teas. 


Berks.. 
Calvin. 
Lehew . 


l''au((uier, 
llighfield, 
M  vcrsville. 

Chandler, 
Talladega. 

Edgemont 


Ifagerstowii  . . 
Duffield, 

Frankstown 
i  )unmore, 

I'^rederick. 

Elliber  

Benevola  

Corvdon  


West  moreland 


Berks. 
Calvin . 


Braddock, 
Tluirmont. 

I.aidig  

Murrili  


Ashton, 
Etowah. 

Ilolston, 
Waynes- 
boro. 

Congaree. . 
Pope  


Huntington.. . 


Moderately 
well  drained 


Somewhat 
Ijoorly 
drained 


Trego  

Buchanan. 


Landisburg. 
Lead  vale. .. 


Mononga- 
hela. 


Chewacla. 


Largent. 


Lindside.. 
Warners.. 


I'oorly 
drained 


Philo. 


Warners. . 


Rohrers- 
ville.  2 


Brinkerton. 


Tyler. 


Wehadkee. 
Atkins  


Atkins. 


Melvin.. 
Warners. 


V  ery 
poorly 
drained 


Dunning 


'  The  Edgeniont  series  includes  some  soils  developed  jxirtly  on  The  surface  layer  of  the  Rohrersville  soils  is  more  or  less  strongly 

colluvial  materials,  and  may  be  difficult  to  distinguish  from  soils     influenced  by  recent,  fine-grained  local  alluvium, 
of  the  Laidig  series. 


W  ASI  lINC  l         COUNTY,  MAHVLAXI) 


7 


soils  art'  iiol  loo  scNcrcly  eroded,  they  arc  suilahlc  i'oi' 
(•idti\iUod  crops.  Some  of  the  soils  aiv  productive,  espe- 
cially for  special  crops,  such  as  peaches  or  apples.  For 
iieneral  crops,  ho\ve\er,  productivity  is  rather  low  because 
ilie  soils  are  shallow  and  some  of  them  are  drou<?hty. 

4.  Berks-Monti'vallo  association 
(Soils  on  shale) 

Two  series,  the  Berks  and  the  ]\roiite\allo,  domi- 
nate this  association.  Theiv  are  a  few  included  minor- 
soils,  such  as  those  of  the  Hi-inkedon  series.  The  Berks- 
]\fontevall()  association  occu[)ies  a  belt  that  extends  in 
a  north-and-south  direction  across  the  county.  It  is  cen- 
tered on  Conocochea^ue  ('reek,  with  smaller  areas  on 
the  Potomac  west  of  Downsville. 

This  association  consists  mainly  of  soils  on  sliale.  The 
soils  are  acid,  shallow,  and  somewhat  drouf^hty,  but  they 
can  l)e  fairly  easily  managed,  can  be  i)lowed  deeply  into 
the  shale,  if  necessary,  and  are  fairly  productive  under 
the  best  management.  The  Berks-IVIontevallo  associa- 
tion makes  up  about  5.1  pei'cent  of  the  county. 

5.  Hazel-Chandler  association 
(Shallow  soils  on  schist) 

The  Ilazel-Chandler  association  consists  chiefly  of  shal- 
low and  very  shallow,  very  acid  soils  developed  from 
mica  schist  and  phyllites.  The  largest  area  extends  north- 
ward from  the  Potoinac  Kiver,  across  from  Harpers 
Ferry,  ^Y.  Va.,  almost  to  McClellans  Lookout ;  a  smaller 
area  is  on  both  sides  of  U.S.  Highway  No.  40,  just  west 
of  the  Frederick  County  Line. 

In  general,  these  soils  are  so  shallow  and  of  such  lim- 
ited productivity  that  they  are  little  used,  although  there 
are  occasional  (■i'o])ped  areas,  pastures,  and  orchard  plots. 
The  Hazel-Chandler  association  occupies  about  1.7  per- 
cent of  the  county. 

6.  Talladega  association 
(Moderately  deep  soils  on  schist) 

On  the  western  slope  of  South  Mountain,  from  a  point 
just  below  Zittlestown  to  one  just  east  of  Kohrersville, 
is  an  area  occupied  mostly  by  soils  of  the  Talladega 
series.  This  area  is  known  as  the  Talladega  association. 
The  soils  are  similar  to  those  of  the  Hazel-Chandler  asso- 
ciation, but  they  are  somewhat  deeper  and  thus  have 
better  moisture  relationships.  There  is  usually  consider- 
able quartzite  gravel  on  and  in  the  upper  part  of  the 
soil. 

Because  of  its  position,  much  of  this  soil  association 
is  used  for  fruit  crops,  especially  berries,  to  take  advan- 
tage of  the  good  air  drainage  on  the  mountain  slopes. 
Otherwise,  general  farming  is  the  pattern,  but  there  are 
many  steep  or  eroded  areas  that  are  strongly  limited 
in  their  usefulness  for  agriculture.  The  Talladega  asso- 
ciation makes  up  about  1  percent  of  the  county. 

7.  Litz-Teas  association 

( Shallow,  steep  soils  on  shale ) 

This  area  on  the  general  soil  map  is  the  Litz-Teas  asso- 
ciation. It  consists  of  one  long,  narrow  ridge,  extending 
southward  from  the  Pennsylvania  line  through  Ringgold 
to  a  point  about  2  miles  northwest  of  Smithsburg.  The 


soils  of  the  I>ilz  'leas  {issociation  are  shallow,  mostly 
fairly  steep,  and  uiidiM  lain  by  noiiacid,  i-eddish  and  gray 
shales. 

Although  feitility  is  not  especially  low,  the  soils  arc 
droughty  atul  thus  are  not  very  productive.  Most  of 
them  are  in  cultivation.  There  ai-e  a  number  of  orchards 
on  soils  of  this  association.  The  associatif)n  makes  up 
only  iibout  0.2  percent  of  the  entii-e  county. 

8.  Calvin-Iierks-Litz-Monlerallo  association 
(Shallow  soils  on  shale,  limestone,  or  sandstone) 

This  is  the  most  extensive  soil  association  in  th(!  divi- 
sion of  shallow  soils.  It  makes  up  more  than  16  percent 
of  the  county  and  extends,  with  some  interruptions,  from 
the  Allegany  County  line  in  the  west  to  Fairview  Moun- 
tain. This  is  also  the  most  complex  of  the  soil  associa- 
tions in  the  county.  There  are  smaller  areas  of  many 
soil  series  included  besides  those  given  in  the  associ;ition 
name.  Some  of  the  soils  developed  from  acid  or  nonacid 
shale,  and  others,  from  limestone  of  various  degrees  of 
purity,  from  sandstone,  or  from  mixtures  of  any  of  these. 

Most  soils  within  this  area  are  shallow  to  bedrock, 
but  there  are  spots  of  deeper  Frederick,  Dunmore,  and 
Westmoreland  soils.  Most  of  the  soils  are  of  medium  tex- 
ture, but  some  are  moderately  coarse  textured.  Because 
this  association  lies  within  the  Appalachian  Valley  and 
Ridge  province,  the  areas  are  mostly  on  fairly  sharp 
ridges  that  are  separated  by  rather  deep,  small  streams 
that  flow  into  the  Potomac  River. 

Agriculture  on  the  Calvin-Berks-Litz-Montevallo  asso- 
ciation is  mostly  of  a  general  nature,  with  the  greatest 
emphasis,  perhaps,  on  fruit  growing.  Peach  and  apple 
orchards  occupy  many  areas,  particularly  areas  underlain 
by  limestones  and  nonacid  shales.  However,  the  greater 
part  of  the  association  is  in  forest.  The  forests  are  pri- 
marily of  hardwood  trees,  dominantly  oaks. 

Moderately  Well  to  Well  Drained, 
Deep,  Medium-Textured  Soils 

This  major  division  of  the  soils  of  "Washington  County 
includes  most  of  the  recent  and  older  alluvial  soils  of 
the  flood  plains  and  terraces.  The  soils  are  mostly  me- 
dium textured  and  deep,  but  there  are  variations  in 
drainage.  Most  of  the  soils  are  at  least  moderately  well 
drained.  This  division  makes  up  about  2  percent  of  the 
county. 

9.  Holston-Monongahela-Huntington- 
Lindside  association  ( Soils  on  broad 
flood  plains  and  terraces) 

This  is  the  only  soil  association  of  this  major  division. 
It  consists  of  soils  of  the  flood  plains  and  of  large  parts 
of  the  terraces  of  the  Potomac  River.  The  Holston  soils 
are  well  drained  and  the  Monongahela  soils  are  moder- 
ately well  drained  soils  of  the  terraces.  The}-  developed 
from  very  old,  acid  sediments.  The  Monongahela  soils 
have  a  strongly  developed  silt  pan  or  fragipan  horizon 
in  their  subsoil,  and  this  restricts  drainage. 

The  Huntington  and  Lindside  soils  are  on  recent  flood 
plains  that  consist  of  sediments  influenced  by  limestone. 
The  Huntington  soils  are  well  drained,  but  the  Lindside 


5005.33—62  Z 


8 


SOIL  SURVEY  SERIES    1  950,   NO.  17 


soils  have  a  seasonally  lii<>li  wafei'  table  and  are  only 
moderately  well  drained.  There  aiv  smaller  areas  of 
other  soils,  such  as  the  Tylei-  and  ^Vayneshol■o  soils  on 
the  terraces  and  the  Atkins.  IMiilo,  and  Pope  soils  on  the 
flood  plains. 

Aoricidture  is  fairly  well  dexelopt'd  on  the  soils  of 
the  I lolston-AIononoahela-lIunt in<:ton-Lindside  associa- 
tion. Most  of  it  is  o-eneral  fai'inin^-.  The  Holston  and 
Monono-ahela  soils  are  above  nonnal  Hood  staijes  of  the 
Potomac,  but  both  are  subject  to  erosion.  The  Mononga- 
hela  soils  are  considered  cold  because  of  the  impeded 
drainage.  The  lluntin<iton  and  I^indside  soils  may  be 
flooded  by  the  Potomac  at  hi<ih-\vater  stafjes,  and  the 
Lindside  soils  also  are  somewhat  wet  and  cold.  This  as- 
sociation makes  up  about        ])ercent  of  tlie  county. 

Well-Drained,  Deep,  Medium-Textured  Soils 

This  is  by  far  the  most  extensive  and  important  major 
division  of  the  soil  associations  in  Wash  i  not  on  County. 
The  soils  vary  in  many  characteristics,  but  they  are  all 
deep,  well  drained,  and  of  medium  te.xture.  These  soils 
are  hiohly  suitable  for  agriculture  wherever  they  are  not 
too  strono-ly  limited  by  steep  s1oi)es  or  by  ag-ffravated 
erosion.  They  are  also  suitalde  foi-  most  nonagricultural 
))urposes.  Tliere  are  5  distinct  soil  associations  in  this 
division.  Together  they  make  up  neai'ly  ().')  ])ei'ccnt  of 
the  entire  county. 

10.  Braddock-Thurmont-Edgemont-Laidig 
association  (Gravelly  soils) 

'I'he  soils  of  this  association  are  in  foot-sloj)e  positions 
below  mountains  or  ridges.  They  have  been  formed  in 
colluvial,  acid  rock  delu-is  and  ai-e  mostly  rather  gravelly. 
The  gravel  sometimes  hinders  cuhi\  ati<)n  oi-  creates  other 
management  problems,  but  it  in  lu)  way  atlects  the  suit- 
abiliry  or  tlie  capability  of  the  soils. 

Because  of  their  position  in  relation  to  ridges,  these 
soils  have  good  air  drainage.  Therefore,  they  are  used 
rather  extensively  for  orchards  and  berry  crops,  par- 
ticularly in  the  northeastern  part  of  the  county  between 
the  Pennsylvania  State  line  and  Cavetown.  They  are 
also  used  for  general  crops  and  pastures,  and  some  rather 
large  areas  are  still  in  forests.  About  4.2  percent  of  the 
county  is  occupied  by  the  soils  of  this  association. 

//.    Waynesboro  association  ( Soils  on  high 
terraces  along  the  Potomac  River) 

This  association  consists  almost  entirely  of  the  soils  of 
one  series,  the  Waynesboro,  with  only  small  areas  of  othel- 
soils.  The  Wayne-sboro  soils  consist  of  very  old,  acid 
alluvium,  mostly  gravelly,  which  has  been  deposited  in 
rather  thick  1)eds  above  the  Potomac  Iviver.  These  mate- 
rials are  so  thick  that  any  underlying  stratum,  whether 
it  be  older  alluvium,  limestone,  or  other  material,  has 
had  no  evident  effect  on  the  soil. 

These  soils  are  used  for  all  the  crops  conunon  to  the 
county,  except  orchards.  They  generally  lack  the  air 
drainage  that  is  needed  for  fruit  crops.  The  soils  of  the 
Waynesboro  association  are  probably  somewhat  less  pro- 
ductive than  the  soils  of  the  other  associations  in  this 
division.  The  association  occu2:)ies  about  2.4  percent  of 
the  county.   It  occupies  rather  small  areas  at  A'arious 


points  on  the  high  terraces  of  the  Potomac  Kiver,  from 
the  vicinity  of  Four  Locks  downstream  to  a  j)oiiit  just 
southwest  of  Sharpsburg. 

12.  Fauquier-Myersville-High  field 
association  ( Soils  on  greenstone) 

This  association  is  made  up  almost  entiiely  of  deep, 
well-drained,  medium-textured  soils  (hat  developed  in  tlie 
weathered  residue  of  greenstone  rocks.  Because  these 
I'ocks  are  rich  in  basic  minerals,  the  soils  developed  from 
them  are  less  acid  and  contain  more  plant  luitrients  than 
iiiniiy  of  the  soils  of  the  county.  The  most  iin[)oi'tant 
area  of  the  Fau(|uier-Myersville-I lighlield  association  is 
in  Pleasant  \'alley,  which  is  drained  by  Israel  Creek,  it 
is  in  the  extreme  southeastern  part  of  the  county.  Smaller 
areas  are  at  higher  ele\ations  in  the  extreme  northeastei'ii 
part  of  the  county,  in  the  general  area  between  Ilai'man 
(Jap  and  llighlield. 

The  soils  of  (his  association  are  used  for  all  the  crops 
of  (he  area,  including  orchards  and  pastures.  The  asso- 
ciation occupies  about  ■).7  i)ei-cent  of  the  county. 

13.  Murrill  association  (Well-drained  soils 
on  colluvial  deposits  that  contain  lime) 

A\'here\er  high  ridges  of  acid  rocks  are  next  (o  (he 
great  limestone  valley  of  '\^'ashington  County,  colluvial 
uia(ei-ial  has  moved  downslope  and  out  over  the  fringes 
of  (he  valley.  The  forces  (hat  have  caused  this  movement 
ai-e  mosdy  gravity,  assisted  l)y  the  flow  of  nmoif  wa(ers 
over  veiT  long  ])ei  iods  of  time.  "Wherever  the  undei-lying 
liiiu'stoiie  ma(erials  ai'e  close  enough  (o  the  surface  of  the 
land  (o  atrec(  soil  development,  one  series  of  soils,  the  Mur- 
rill, is  extensive.  There  Ave  have  the  Murrill  association, 
made  uj)  almost  entirely  of  soils  of  the  one  series. 

The  soils  of  (his  association  occur  on  the  lowest  west- 
ei-n  slopes  of  Soutli  INIountain,  from  the  Pennsylvania 
line  southward  almost  to  Rohrersville.  They  are  also 
on  the  lowest  western  slopes  of  Elk  Ridge  from  near 
Porterstown  southward  to  the  Potomac  River;  in  a  small 
isolated  area  just  north  of  Antietam;  and  in  a  large  area 
on  the  lowest  eastern  slopes  of  Fairview  Mountain,  from 
the  Pennsylvania  line  southward  beyond  Clear  S])ring 
and  southeastward  to  the  Potomac  in  the  vicinity  of  Two 
Locks.  The  Murrill  association  makes  up  altogether 
about  6.5  percent  of  the  county. 

The  Murrill  association  is  important  in  the  agiicul- 
ture  of  the  county.  Because  the  soils  are  undei-lain  by 
limestone  and  are  influenced  by  limestone  materials,  they 
are  more  productive  than  most  of  the  soils  on  other 
materials.  General  farming  is  the  common  pattern,  with 
emphasis  on  dairying  and  other  livestock  enterprises. 
There  are  some  orchards,  but  they  are  not  so  common 
as  on  the  somewhat  higher  intermediate  slopes  where 
air  drainage  is  usuallj'  somewhat  better.  Only  small  and 
unimportant  areas  within  the  ^Murrill  association  remain 
in  forests. 

IJ.    Hagerstown-Duffield-Frankstown  association 
(Soils  of  limestone  valleys) 

This  soil  association  occupies  most  of  the  main  basin 
of  the  great  limestone  valley  that  crosses  the  county 
between  South  Mountain  and  Fairview  Mountain.  At 
least  90  percent  of  the  association  is  occupied  by  soils 


\VASIlI\(i'r()N   COUNTY,  MARYLAND 


ol'  iIh'  1 1 iiiicrsi ow  II,  Diillicld,  aiHl  l*'i;iiikslo\vii  sci  ii'S. 
Oilier  locally  iiuportanl  series  williiii  the  same  area  are 
(he  Heiievola,  ( 'oi'ydoii,  I'ilowali,  1 1  mil  iiiirt on,  Liii<lsi(le, 
INIelviii,  I )uiiiiiii<i-,  and  AVai-ners,  l)u(  IIumi-  lolal  area  is 
insi<;iiilieant  in  (comparison  to  the  soils  of  (he  three  domi- 
nant sei'ies.  Alto^-e,t her  the  IIa<>;ersto\vn-I)nllield-Kraiiks^ 
town  association  accounts  for  more  (lian  4(1  i)ei'cent  of 
Washiiii^ton  County,  (lius  domina(in<j  (he  a<j:ricult ure, 
not  only  of  (he  valley  l)n(  also  of  (he  en(ire  ('oun(y. 

The  I  Ia<iers(()\vn  soils  are  ivd  and  iiave  been  developed 
from  more  or  less  ])ure,  massive  linies(one  in  (he  valley. 
Tiie  DuUield  and  Franks(()\vn  soils  are  more  yellowish. 
The  Diiflield  soils  have  been  (Ievel<)])ed  fi'om  iiderbedded 
liines(ones  and  s()f(  shales,  sonie(inies  known  as  shabby 
limestones,  and  the  F'rankstown  soils,  from  impure  lime- 
s(oiies  con(ainin<i;'  some  shale  and  clierty  gravel  and  (liin 
beds  of  sandstone.  The  Dullield  soils  are  somewhat 
deeper  (lian  (he  Franks(own.  The  soils  of  these  thi*ee 
series  are  fer(ile  and  are  ])rodiic(ive  under  good  man- 
ageiiieid. 

There  is  a  major  \aria(ion  widiin  (he  Hagers(own- 
DufKeld-Frankstown  association  that  is  not  shown  on  the 
general  soil  map.  Eock  outcrops  are  fairly  connnon  in 
all  of  these  soils.  In  large  parts  of  the  valley,  ou( crop- 
ping ledges  of  limestone  are  so  numerous  that  they  are 
shown  on  the  larger  de(ailed  soil  ma])  as  \ery  rocky  or 
ex(reinely  rocky  phases  of  (he  soils.  In  such  A  ery  rocky 
or  ex(reniely  I'ocky  areas,  the  soils  are  deep  between  the 
outcrops,  except  where  some  of  the  ledges  lie  from  a 
few  inches  to  a  foot  or  more  below  the  surface.  This 
rockiness,  of  course,  limits  the  usefulness  of  the  soils. 
These  limitations  are  discussed  more  fully  in  the  section 
"Use  and  Management  of  Soils." 

Because  they  are  l)o(]i  productive  and  extensive,  the 
soils  of  the  Hagerstown-Duflield-Frankstown  association 


are  the  most  im))orlaiit  ones  in  I  he  agricii  ll  ii  i  a  I  economy 
of  1  h(i  county.  These  s(jils  are  used  for  all  crops,  with 
great  emphasis  on  corn,  small  gi'ains,  hay  crops,  and 
pastures.  Because  of  this  |)atieiii,  pins  ndatixe  nearness 
to  (he  gi'eat  eastern  markets,  daiiying  is  the  most  im- 
poi-(ant  (ype  of  eiderprise;  nex(  in  ini]>or(ance  are  (he 
other  livestock  operadons.  Under  good  management, 
yields  of  all  crops  are  high.  Tiie  chief  deterrent  (o  even 
grea(er  pro(luc(ion,  as  already  in(lica(ed,  is  (he  presence 
of  large  areas  of  ou(cropping  r!mes(one  rocks.  Even 
these  areas,  where  cul(i\ation  is  hindered  or  in  some 
places  ))reven(ed,  aiv  useful  foi-  pasdiivs  and  for  some 
hay  crops. 

All  of  (he  soils  of  (he  couidy,  wliedier  or  not  they  have 
been  named  in  this  discussion  of  the  general  areas,  are 
described  in  detail  in  (he  next  sec(i()ii  of  (his  i-epoi'(. 

Description  of  the  Soils 

In  (his  section  (he  soils  and  land  (ypes  in  AVashing(on 
County  are  described  in  de(ail.  For  each  series  of  soils, 
one  typical  profile  is  descrii)ed.  Differences  among  soils 
in  the  same  series  are  no(ed  in  (he  descrip(ions  of  (he 
mapping  units.  Most  commonly,  (he  differences  are  in 
slope  and  in  the  degree  of  erosion  oi-  in  the  tex(ui-e  of 
(he  surface  layer. 

The  location  and  distribu(ion  of  the  individual  soils 
are  shown  on  the  soil  map  in  the  back  of  this  report. 
The  approximate  acreage  and  proportionate  extent  of 
each  soil  are  shown  in  table  4.  Many  terms  used  in  de- 
scribing the  soils  are  defined  in  the  Glossary.  A  more 
detailed  account  of  the  origin  of  tlie  soils  is  in  tlie  section 
"Formation  and  Classification  of  Soils." 


Table  4. — Approximate  acreage  and  proportionate  extent  of  soi'/s 


Ashton  fine  sandy  loam,  0  to  5  percent  slopes_ 

Atkins  silt  loam  

Benevola  clay  loam,  0  to  3  percent  slopes  

Benevola  clay  loam,  3  to  8  percent  slopes, 
moderately  eroded  

Benevola  clay  loam,  8  to  15  percent  slopes, 
moderately  eroded  

Benevola  clay  loam,  8  to  15  percent  slopes, 
severely  eroded  

Berks  channery  loam,  ridges,  0  to  10  percent 
slopes,  moderately  eroded  

Berks  channery  loam,  ridges,  10  to  20  per- 
cent slopes,  moderately  eroded  

Berks  channery  loam,  ridges,  10  to  20  per- 
cent slopes,  severely  eroded  

Berks  channery  loam,  ridges,  20  to  30  per- 
cent slopes,  moderately  enjded   

Berks  shaly  silt  loam,  0  to  8  i)("rceiit  slopes--. 

Berks  shaly  silt  loam,  3  to  8  percent  slopes, 
moderately  eroded  

Berks  shaly  silt  loam,  8  to  15  percent  slopes, 
moderately  eroded  

Berks  shaly  silt  loam,  15  to  25  percent  slopes, 
moderately  eroded  

Berks  silt  loam,  ridges,  0  to  10  percent  slopes, 
moderately  eroded  

Berks  silt  loam,  ridges,  10  to  20  percent 
slopes,  moderately  eroded  


Acres 


Percent 


78 
1,  164 
159 

0) 

0.  4 
.  1 

412 

.  1 

176 

.  1 

65 

(') 

815 

.  3 

879 

.  3 

194 

.  1 

632 
1,  002 

.  2 
.  3 

2,  606 

.  9 

2,  381 

.  8 

352 

.  1 

695 

.  2 

391 

.  1 

Berks  silt  loam,  ridges,  10  to  20  percent 

slopes,  severely  eroded  

Berks  silt  loam,  ridges,  20  to  30  percent 

slopes,  moderately  eroded  

Berks  soils,  ridges,  20  to  45  percent  slopes, 

severely  eroded  

Berks  soils,  ridges,  30  to  60  percent  slopes  

Braddock  and  Thurmont  gravelly  loams,  3 

to  8  percent  slopes,  moficratelv  eroded  

Braddock  and  Thurmont  gravelly  loams,  8 

to  15  percent  slopes,  moderately  eroded  

Braddock  and  Thurmont  gravelly  loams,  15 

to  25  percent  slopes  

Brinkerton  silt  loam,  0  to  8  percent  slopes.-. 
Buchanan  gravelly  loam,  0  to  3  percent 

slopes  

Buchanan   gravelly  loam,  3  to  8  percent 

slopes,  moderately  eroded  

Buchanan  gravelly  loam,  8  to  15  percent 

slopes,  moderately  eroded  

Buchanan  gravelly  loam,  15  to  25  percent 

slopes,  moderately  eroded  

Calvin  channery  fine  sandy  loam,  3  to  10 

percent  slopes,  moderately  eroded  

Calvin    channery   loam,   3   to   10  percent 

slopes,  moderately  eroded  

Calvin  channery  loam,   10  to  20  percent 

slopes,  moderately  eroded  


Acres 


304 

0.  1 

273 

.  1 

823 

.  3 

3,  987 

1.  3 

575 

.  2 

567 

.  2 

74 

(') 

236 

.  1 

77 

(■) 

866 

.  3 

562 

.  2 

86 

(') 

276 

.  1 

890 

.  3 

1,  978 

.  7 

10 


SOIL   SURVEY  SERIES    1959,  NO.  17 

Table  4. — Approximate  acreage  and  proportionate  extent  oj  soils — Continued 


Soil 


loam,  20 


to  30  percent 
to  30  percent 
to  45  percent 
percent 


to  20 
to  30' 


Calvin  channcry 
slopes  

Calvin  channcry  loam,  20 
,sloi)os,  moderately  eroded 

Calvin  channery  loam,  30 

slopes    

Calvin  channery  loam,   45  to  60 

slopes  

Calvin  shaly  loam,  0  to  10  percent  slopes, 
moderately  eroded  

Calvin  shaly  loam,  10  to  20  percent  slopes, 
moderately  eroded  

Calvin  shaly  loam,  10  to  20  percent  slopes, 
severely  ertjded  

Calvin  shaly  loam,  20  to  30  percent  slopes.. 

Calvin  shaly  loam,  30  to  45  percent  slopes.  . 

Calvin-Berks  channery  loams,  0  to  10  per- 
cent slopes,  moderately  eroded  

Calvin-Berks  channery  loams,  10  to  20  per- 
cent slopes,  moderately  eroded  

Calvin-Berks  channery  loams,  3  to  20  per- 
cent slopes,  severely  eroded  

Calvin- Berks  channery  loams,  20  to  30  per- 
cent slo|>es,  moderately  enxknl  

Calvin- Berks  cliannery  loams,  30  to  60  per- 
cent slo])es,  moderately  eroded  

Calvin-Moiitevallo   shaly   loams,   0   to  10 
percent  slopes,  moderately  eroded  

Calvin-Montevallo  shaly  loams,  10 
jjercent  slopes,  moderately  eroded  _ 

Calvin-Montevallo  shaly   k)ams,  20 

])ercent  slopes,  moderately  eroded  

Calvin-Montevallo  shaly  loams,  20  to  45 
jjercent  slopes,  severely  eroded  

Calvin-Montevallo  shaly  loams,  30  to  60 
percent  slopes  

Chandler  silt  loam  and  channery  silt  loam,  0 
to  10  percent  slopes  

Chandler  silt  loam  and  channery  silt  loam,  3 
to  10  percent  slopes,  moderately  eroded  

Chandler  silt  loam  and  channery  silt  loam, 
10  to  20  percent  slopes,  moderately  eroded 

Chandler  silt  loam  and  channery  silt  loam, 
20  to  30  percent  slopes  

Chewacla  gravelly  sandy  loam  

Chewacla  silt  loam  

Chewacla  stony  silt  loam  

Congaree  silt  loam  and  gravelly  loam  

Corydon  clay  loam,  0  to  3  percent  slopes  

Corydon  clay  loam,  3  to  8  percent  slopes, 
moderately  eroded  

Corydon  clay  loam,  8  to  15  percent  slopes, 
moderately  eroded  

Corydon  extremely  rocky  clay  loam,  0  to  15 
percent  slopes  

Corydon  very  rocky  clay^  loam,  3  to  45  per- 
cent slopes,  moderately  eroded  

Dekalb   and    Leetonia   very   stony  sandy 
loams,  0  to  25  percent  slopes  

Dekalb   and    Leetonia   very   stony  sandy 
loams,  25  to  45  percent  slopes  

Dekalb   and    Leetonia   ver\^   stony  sandy 
loams,  45  to  60  percent  slopes  

Dekalb  and  Lehew  very  stony  loams,  0  to 
25  percent  slopes  

Dekalb  and  Lehew  very  stony  loams,  25  to 
45  percent  slopes  

DufReld  extremely  rocky  silt  loam,  0  to  15 
percent  slopes  

Duffield  silt  loam,  0  to  3  percent  slopes  

DufReld  silt  loam,  3  to  8  percent  slopes, 
moderately  eroded  

Duffield  silt  loam,  8  to  15  percent  slopes, 
moderately  eroded  


Area 


Acrts 


Extent 


Percent 


651 

0.  2 

224 

.  1 

859 

.  3 

156 

.  1 

189 

.  1 

126 

(') 

118 
112 

204 

(') 
(') 

.  1 

1 ,  565 

.  5 

2,  798 

.  9 

320 

.  1 

1,  289 

.  4 

1,  315 

.  4 

103 

(') 

178 

.  1 

163 

.  1 

134 

(■) 

255 

.  1 

143 

(■) 

360 

.  1 

342 

.  1 

97 
206 
311 
157 

86 
309 

(') 

.  1 
.  1 
.  1 

0) 

.  1 

1,  006 

.  3 

200 

1 

405 

.  1 

857 

.  3 

1,  762 

.  6 

1,  056 

.  4 

201 

.  1 

281 

.  1 

493 

.  2 

1,  279 
3,  352 

.  4 
1.  1 

16, 338 

5.  5 

4,  739 

1.  6 

Soil 


Duffield  silt  loam,  8  to  25  percent  slopes, 

severely  eroded  

Duffield  silt  loam,  15  to  25  percent  slopes, 

moderately  eroded  

Duffield  very  rocky  silt  loam,  3  to  15  percent 

slopes  

Duffield  very  rocky  silt  loam,  8  to  45  percent 

slopes,  moderately  eroded  

Dunmore  cherty  silt  loam,  3  to  8  percent 

slopes,  moderately  erodcfl  

Dunmore  cherty  silt  loam,  8  to  15  percent 

slopes,  moderately  eroded  

Dunning  and  Melvin  silty  clay  loams  

Edgeniont  and  I^aidig  channery  loams,  0  to 

12  f)ercent  slopes  

Edgemont  and  Ijaidig  channery  loams,  5  to 

20  percent  slopes,  moderately  eroded  

Edgemont  and  Laidig  channery  loams,  20  to 

35  percent  slopes,  moderately  eroded  

Edgemont  and  Laidig  channery  loams,  35  to 

60  percent  slopes,  moderately  eroded  

Edgemont  and  Laidig  very  stony  loams,  0 

to  5  i)ercent  sloi)es  

Edgemont  and  Laidig  very  stony  loams,  5 

to  35  percent  slopes  

Edgemont  and  Laidig  very  stony  loams,  35 

to  60  percent  slopes  

Elliber  cherty  loam,  5  to  12  percent  slopes, 

moderately  eroded  

Elliber  cherty  loam,  12  to  25  percent  slopes, 

moderately  eroded  .   

Ellil)er  cherty  loam,  25  to  45  percent  slopes, 

moderately  eroded  

Elliber  cherty  loam,  45  to  55  percent  slopes- 
Eroded  land,  greenstone  materials  

Eroded  land,  limestone  materials  

Eroded    land,    sandstone    and  ciuartzite 

materials  

Eroded  land,  shale  and  schist  materials  

Etowah  gravelly  loam,  0  to  3  percent  slopes, 
Etowah  gravelly  loam,  3  to  8  percent  slopes, 

moderately  eroded  

Etowah  gravelly  loam,  8  to  15  percent  slopes, 

moderately  eroded  

Etowah  gravelly  loam,   15  to  25  percent 

slopes,  moderately  eroded  

Etowah  silt  loam,  0  to  3  percent  slopes  

Etowah  silt  loam,  3  to  8  percent  slopes,  mod- 
erately eroded  

Etowah  silt  loam,  8  to  15  percent  slopes, 

moderately  eroded  

Fauquier  channery  loam,  0  to  5  percent 

slopes  

Fauquier  channery  loam,  5  to  10  percent 

slopes,  moderately  eroded  

Fauquier  channery  loam,  10  to  20  percent 

slopes,  moderately  eroded  

Fauquier  channery  loam,  20  to  35  percent 

slopes,  moderately  eroded  

Fauquier  silt  loam,  0  to  3  percent  slopes  

Fauquier  silt  loam,  3  to  10  percent  slopes, 

moderately  eroded  

Fauquier  silt  loam,  10  to  20  percent  slopes, 

moderately  eroded    

Fauquier  silt  loam,  shallow,  3  to  20  percent 

slopes,  moderately  eroded  

Fauquier  very  stony  loam,  5  to  35  percent 

slopes  

Frankstown  extremely  rocky  silt  loam,  0  to 

25  percent  slopes  

Frankstown  extremely  rocky  silt  loam,  25  to 

45  percent  slopes  

Frankstown  very  rocky  silt  loam,  3  to  15  per- 
cent slopes,  moderately  eroded  


Area 
Acret 

99 

669 

1,  895 

178 

44 

50 
1,  896 

1,  493 
4,  613 

2,  870 
291 
127 

12,  524 

771 

520 

719 

629 
81 
101 
617 

221 

3,  890 

97 

363 

182 

40 
154 

339 

188 

244 

1,  735 

1,  144 

271 
41 

289 

93 

42 

435 

983 

140 

2,  413 


Sfe  footnote  at  ond  of  tal)U'. 


WASIIIXCTON   COUNTY,  MAItVKAM) 

(ic/'((i;ii  (iinl  /nojKirtioiKitr.  cftcnt,  oj  .soils     (  "otil  iinicd 


Soil 


Fraiikstowii  wry  rocky  silt  loam,  8  to  15  per- 
cent slopes,  severely  (M'odetl  

Friiiikstowii  \ery  rooky  silt  loam,  15  to  45 

perc'i'iit  slopes,  nioderatcly  eroded  

Fraiikstowii    and    Diiflield    chaiinery  silt 

loams,  0  to  '.^  percent  slojx's  

Fraiikstowii    and    Duffield    chaniiery  silt 

loams,  ',\  to  8  percent  slopes,  moderately 

eroded  .   

Fraiikstowii    and    Duffield    chaiinery  silt 

loams,   0  to  8  percent  slopes,  severely 

erodi'd  ,  

Fraiikstowii    and    Duffield    clmnnery  silt 

loams,  8  to  15  percent  slopes,  moderately 

eroded  

Frankstown    and    Duffield    chaiinery  silt 

loams,  8  to  15  percent  slopes,  severely 

eroded  

Frankstown    and    Duffield    chaiinery  silt 

loams,  15  to  25  percent  slopes,  moderately 

eroded  ,  

Frankstown    and    Duffield    channery  silt 

loams,  15  to  25  percent  slopes,  severely 

eroded  

Frankstown    and    Duffield    channery  silt 

loams,  25  to  45  percent  slopes,  moderately 

eroded  

Frankstown    and    Duffield    channery  silt 

loams,  25  to  45  percent  slopes,  severely 

eroded  

Frederick  cherty  silt  loam,  0  to  8  percent 

slopes,  moderately  eroded  

Frederick  cherty  silt  loam,  8  to  15  percent 

slopes,  moderately  eroded  

Frederick  cherty  silt  loam,  8  to  15  percent 

slopes,  severely  eroded  

Frederick  cherty  silt  loam,  15  to  25  percent 

slopes,  moderately  eroded  

Frederick  cherty  silt  loam,  15  to  25  percent 

slopes,  severely  eroded  

Frederick  cherty  silt  loam,  25  to  45  percent 

slopes,  moderately  eroded  

Hagerstown  clay  loam,  0  to  3  percent  slopes... 
Hagerstown  clay  loam,  0  to  8  percent  slopes, 

moderately  eroded  

Hagerstown  clay  loam,  3  to  8  percent  slopes, 

severely  eroded  

Hagerstown  clay  loam,  8  to  15  percent  slopes, 

moderately  eroded  -  

Hagerstown  clay  loam,  8  to  15  percent  slopes, 

severely  eroded  

Hagerstown  clay  loam,   15  to  25  percent 

slopes,  moderately  eroded  

Hagerstown  clay  loam,   15  to  25  percent 

slopes,  severely  eroded  

Hagerstown  extremely  rocky  silt  loam,  0  to 

25  percent  slopes,  moderately  eroded  

Hagerstown  extremely  rocky  silty  clay  loam, 

0  to  25  percent  slopes,  moderately  eroded. 
Hagerstown  extremely  rocky  soils,  25  to  45 

percent  slopes  

Hagerstown  silt  loam,  0  to  3  percent  slopes.. 
Hagerstown  silt  loam,  0  to  8  percent  slopes, 

moderat(>ly  eroded  

Hagerstown  silt  loam,  8  to  15  percent  slopes, 

moderately  eroded  

Hagerstown  silt  loam,  15  to  25  percent  slopes, 

moderately  eroded  . 

Hagerstown  silt\'  day  loam,  0  to  3  percent 

slopes  ,  

Hagerstown  silty  clay  loam,  0  to  8  percent 

slopes,  moderately  eroded  

Hagerstown  silty  clay  loam,  8  to  15  percent 

slopes,  moderately  eroded  

Sec  footnote  at  end  of  table. 


Area 

.If  ret 

580 
519 
244 

C,  909 

60 

3,  1 1 1 
1 ,  3()6 

542 
864 
162 

89 
711 
672 

63 
517 

57 

465 
117 

775 

52 

144 

153 

123 

190 

0,  696 

4,  156 

111 

1,  146 

22,  661 

3,  690 
252 
437 

4,  038 
1.  458 


Extent 

Percent 

0.  2 
.  2 
.  1 


(') 


0) 

(') 

(') 
(') 

(') 
(') 

(') 


2.  3 

I 

1.  1 
.  5 
.  2 
.  3 
.  1 

.  2 

.  2 


(') 


.  1 
2.  3 
1.  4 

.  4 
7.  7 
1.  2 

.  1 

.  1 
1.  4 

.  5 


Soil  Area 


Hagerstown  silty  clay  loam,  15  to  25  percent 

slopes,  moderately  eroded     153 

Hagi^rstown  \cry  rocky  silt  loam,  3  to  15  per 

cent  slojies,  moderately  eroded     10,613 

Hagerstown  V(;ry  rocky  sill  loam,  15  1o  45 

percent  slopes,  moderately  eroded   I,  (J87 

Hagerstown  very  rocky  silty  cliiy  loam,  3  to  j 

15  jiercent  slojK's,  moderately  eroded   8,  :')7I 

Hagerstown  very  rocky  silty  clay  loam,  8  to 

15  jierceiit  slopes,  seventy  eroded   2,  836 

Hagerstown  very  rocky  silty  clay  loam,  15  to 

45  perc(>nt  slopes,  moderately  eroded   621 

Hagerstown  very  rocky  soils,  45  to  55  per- 
cent slopes...!  1   107 

Hagerstown,   Corydon,  and  Duffield  very 

rocky  silt  loams,  0  to  3  percent  slopes   424 

Hagerstown  and  Duffield  silt  loams,  25  to  45 

percent  slojies,  moderatel.\-  eroded   149 

Hazel  channery  silt  loam,  0  to  10  percent 

sloi)es,  moderately  eroded   1,  438 

Hazel  channery  silt  loam,  10  to  20  percent 

slopes,  moderately  eroded   1,  856 

Hazel  channery  silt  loam,  10  to  20  percent 

slopes,  severely  eroded   202 

Hazel  channery  silt  loam,  20  to  30  percent 

slopes,  moderately  eroded   1,  095 

Hazel  channery  silt  loam,  20  to  30  percent 

slopes,  severely  eroded   124 

Hazel  channery  silt  loam,  30  to  45  percent 

slopes   210 

Highfield  gravelly  loam,   0  to  5  percent 

slopes   67 

Highfield  gravelly  loam,  5  to   10  percent 

slopes,    moderately   eroded   315 

Highfield  gravelly  loam,  10  to  20  percent 

slopes,  moderately  eroded   212 

Highfield  gravelly  loam,  20  to  35  percent 

slopes,  moderately  eroded   78 

Highfield  very  stony  loam,  0  to  5  percent 

slopes   44 

Highfield  very  stonv  loam,  5  to  30  percent 

slopes  1   2,123 

Highfield  very  stony  loam,  30  to  45  percent 

slopes   470 

Holstoii  gravelly  loam,  0  to  3  percent  slopes.  439 
Holstuii  [;ra\elly  loam,  0  to  8  percent  slopes, 

iiioderatel.\'  eroded   1,  395 

Holstoii  gravelly  loam,  8  to  15  percent  slopes, 

moderately  eroded   588 

Holston  gravelly  loam,  8  to  25  percent  slopes, 

severely  eroded   49 

Holston  gravell.v  loam,   15  to  25  percent 

slopes,  moderately  eroded   118 

Holston  gravelly  loam,   25  to  45  percent 

slopes,  moderately  eroded   70 

Holston  gravelly  sandy  loam,  3  to  8  percent 

slopes   115 

Holston  gravelly  sandy  loam,  3  to  15  percent 

slopes,  moderately  eroded   153 

Holston  gravelly  sandy  loam,  8  to  15  percent 

slopes,  severely  eroded   50 

Holston  silt  loam,  0  to  3  percent  slopes   224 

Holston  silt  loam,  3  to  8  percent  slopes,  mod- 
erately eroded   666 

Holston  silt  loam,  8  to  15  percent  slopes, 

moderately  eroded   208 

Huntington  fine  sandy  loam   1,  507 

Huntington  gravelly  loam   671 

Huntington  silt  loam   1,  439 

Huntington  silt  loam,  local  alluvium   4,  811 

Laidig  gravelly  loam,  0  to  3  percent  slopes   110 

Laidig  gravelly  loam,  3  to  8  percent  slopes, 

moderatelv  eroded  |  1,278 


(■) 


.  4 


12 


SOIL  SURVEY  SERIES    1959,  NO.  17 

Table  4. — Approximate  acreage  and  pniportionate  extent  of  soils — Continued 


Soil 


Laidig  grjivclly  loam,  8  to  15  percent  slopes, 
moderately  eroded  

Luidifi  gravelly  loam,  15  to  25  percent  slopes, 
moderately  eroded  

Laidig  very  sstony  loam,  8  to  25  percent  slopes. 

Laidig  very  stony  loam,  15  to  45  percent 
slojH's,  moderately  eroded  

Landisburg  cherty  silt  loam,  8  to  8  percent 
slopes,  moderately  eroded  

Landisburg  cherty  silt  loam,  8  to  25  percent 
slopes,  moderate!}'  eroded  

Largent  silt  loam  

Leadvale  gravellj'  silt  loam,  0  to  3  percent 
slopes  

Leadvale  gravelly  silt  loam,  3  to  8  percent 
slopes,  moderately  eroded  

Lindside  silt  loam  

Lindside  silt  loam,  local  alluvium  

Jiitz  channery  loam,  3  to  10  percent  slopes, 
moderately  eroded  . 

Lltz  channery  loam,  10  to  20  percent  slopes, 
moderately  eroded  

Litz  channery  loam,  10  to  20  percent  slopes, 
severely  t-roded  

Litz  shaly  loam,  0  to  10  percent  slopes  

Litz  shaly  loam,  3  to  10  percent  slopes,  mod- 
erately eroded  

Litz  shaly  loam,  10  to  20  percent  slopes,  mod- 
erately eroded  

Litz  shaly  loam,  10  to  20  percent  slopes,  se- 
verely eroded  

Litz  shaly  loam,  20  to  30  percent  slopes,  mod- 
erately eroded  _. 

Litz  shaly  loam,  20  to  30  percent  slopes, 
severely  eroded  

Litz  shaly  loam,  30  to  45  percent  slopes, 
moderately  eroded  

Litz  shaly  loam,  30  to  45  percent  slopes, 
severely  eroded  

Ijitz  shaly  loam,  45  to  60  percent  slopes  

Litz-Teas  channery  silt  loams,  0  to  8  percent 
slopes  

Litz-Teas  channery  silt  loams,  3  to  15  per- 
cent slopes,  moderately  eroded  

Litz-Teas  channery  silt  loams,  8  to  15  per- 
cent slopes,  severely  eroded  

Litz-Teas  channery  silt  loams,  15  to  25  per- 
cent slopes,  moderately  eroded  

Litz-Teas  channery  silt  loams,  15  to  25  per- 
cent slopes,  severely  eroded  

Litz-Teas  channery  silt  loams,  25  to  45  per- 
cent slopes,  moderately  eroded  

Melvin  silt  loam  ,  

Monongahela  gravelly  loam,  3  to  8  percent 
slopes,  moderately  eroded  

Monongahela  gravelly  loam,  8  to  15  percent 
slopes,  moderately  eroded  

Monongahela  silt  loam,  0  to  3  percent  slopes 

Monongahela  silt  loam,  3  to  8  percent  slopes, 
moderately  eroded  

Monongahela  silt  loam,  8  to  15  percent  slopes, 
moderately  eroded  

Monongahela  silt  loam,  15  to  25  percent 
slopes,  moderately  eroded  

Montevallo  shaly  loam,  0  to  10  percent  slopes, 
moderately  eroded  

Montevallo  shaly  loam,  10  to  20  percent 
slopes,  moderately  eroded  

Montevallo  shaly  loam,  10  to  20  percent 
slopes,  severely  eroded  

Montevallo  shaly  loam,  20  to  30  percent 
slopes,  moderately  eroded  

See  footnote  at  end  of  table. 


Acres 


Extent 


Percent 


1,  574 

0.  5 

479 

722 

.  2 
.  2 

1  I  A 

I  10 

(') 

00 

(') 

143 
15/ 

(') 

.  1 

49 

(') 

4/0 
2,  435 
488 

.  2 
.  8 
.  2 

232 

.  1 

Ck'7 

97 

(') 

1  uy 

366 

(') 

.  1 

•}  o 

.  2 

1,  4y,i 

.  5 

oU4 

.  2 

.  3 

5  /  y 

.  2 

6 1  y 

.  1 

136 

(') 
(') 

I9o 

.  1 

625 

.  2 

126 

(') 

164 

.  1 

167 

.  1 

56 
146 

(') 
(') 

301 

.  1 

110 
443 

(') 

.  1 

861 

.  3 

223 

.  1 

57 

(') 

1,  857 

.  6 

2,  972 

1.  0 

1,  628 

.  6 

1,  812 

.  6 

Soil 


Montevallo  shaly  loam,  20  to  30  percent 

slopes,  severely  erodecl  

Murrill  gravelly  loam,  0  to  3  percent  slopes.. 
Murrill  gravelly  loam,  0  to  8  percent  slopes, 

moderately  eroded.  „  

Murrill  gravelly  loam,  8  to  15  percent  slopes, 

moderately  eroded  .   

Murrill  gravelly  loam,  8  to  25  percent  slopes, 

severely  eroded  

Murrill  gravelly  loam,  15  to  25  percent  slopes, 

moderately  eroded    

Murrill  gra\('lly    loam,    25  to   45  percent 

slopes,  moderately  eroded  .   

Murrill  gravelly  sandy  loam,  0  to  8  percent 

slopes    

Murrill  gravelly  sandy  loam,  3  to  15  percent 

slopes,  moderately  eroded  

Murrill  gravelly  sandy  loam,  8  to  15  percent 

sloi)es,  severely  eroded  

Murrill  gravelly  sandy  loam,  15  to  25  percent 

slopes,  moderately  eroded  

Murrill  gravelly  sandy  loam,  15  to  25  percent 

slo])es,  severely  eroded   

Murrill  silt  loam,  0  to  3  percent  slopes  

Murrill  silt  loam,  0  to  8  percent  slopes,  mod- 
erately eroded  

Murrill  silt  loam,  8  to  15  percent  slopes,  mod- 
erately eroded  

Myersville  channery  loam,  0  to  3  percent 

slopes  

Myersville  channery  loam,  3  to  10  percent 

slopes,  moderately  eroded  

Myersville  channery  loam,  10  to  20  percent 

slopes,  moderately  eroded  

Myersville  channery  loam,  20  to  30  percent 

slopes,  moderately  eroded  

Myersville  chainiery  loam,  30  to  45  percent 

slopes,  moderately  eroded  

Myersville  channery  silt  loam,  3  to  10  percent 

slopes,  severely  eroded  

Myersville  channery  silt  loam,  10  to  30  per- 
cent slopes,  severely  eroded  

Myersville  silt  loam,  0  to  3  percent  slopes  

Myersville  silt  loam,  3  to  10  percent  slopes, 

moderately  eroded  

Myersville  silt  loam,  10  to  20  percent  slopes, 

moderately  eroded  

Myersville  very  stony  loam,  3  to  30  percent 

slopes,  moderately  eroded  

Myersville  very  stony  loam,  30  to  55  percent 

slopes,  eroded  

Philo  gravelly  sandy  loam  

Philo  silt  loam  

Pope  fine  sandy  loam  

Pope  gravelly  loam  

Pope  gravelly  sandy  loam  

Pope  silt  loam  

Pope  stony  gravelly  loam  

Rocky  eroded  land  

Rohrersville  silty  clay  loam,  0  to  8  percent 

slopes,  moderately  eroded  

Stony  rolling  land  

Stony  steep  land  . 

Talladega  gravelly  silt  loam,  thick  solum 

variant,  0  to  20  percent  slopes,  moderately 

eroded  

Talladega  gravelly  silt  loam,  thick  solum 

variant,  10  to  20  percent  slopes,  severely 

eroded  

Talladega  gravelly  silt  loam,  thick  solum 

variant,  20  to  30  percent  slopes  


lOxtent 


Percent 


623 
1,  479 

0.  2 
.  5 

9,  485 

3.  2 

4,  122 

1.  4 

84 

(') 

596 

.  2 

51 

368 

.  1 

678 

.  2 

84 

(') 

88 

0) 

46 
269 

(') 

.  1 

872 

.  3 

214 

.  1 

47 

(') 

1,  331 

.  5 

1,  676 

.  6 

418 

.  1 

175 

.  1 

52 

(') 

57 
131 

(') 
(') 

532 

.  2 

1,  428 

.  5 

147 
430 

1,  254 
1,  793 

4oO 

446 
442 
87 
823 

(') 

.  1 

.  4 

.  6 

.  2 
.  1 

(') 

.  3 

216 
4,  643 
2,  857 

.  1 
1.  6 
1.  0 

794 

.  3 

53 

(') 

160 

.  1 

\vasiiin(;t()n  r'ouNT'i',  maio'land 


Soil 


Table  4. — Approximate  acreage  aw!  /ini/m/iKindii  (.rh  ni  of  soils — Coiiiinm  rl 

Soil 


Talladega  Ki'aNi'llx'  sill    Idaiii,   thick  sdlmii 

N'ariant,  20  lo    15  piTcciil  slopes,  iiiodcr- 

iitcly  crodi'd   

Terrace  cscarpincnts  

Thurnioiil    fiiaxcily   loam,   '.\  to  <S  pcreent 

slo])('s,  modc'ialclv  rrudi'd 
Thuniiont   f;ra\clly  loam,  S  to   15  percent 

slopes,  moderately  eroded   

Trego  gravelly  silt   loam,  0  to  3  percent 

slopes   -  ,   

Trego  gravelly  silt  loam,  \^  to  15  percent 

slopes,  moderately  eroded   

Tyler  silt  loam,  0  to  ,S  peri'eiit  slopes  

Warners  loam,  0  to  8  percent  slopes  

\\'aynesboro  gravelly  loam,  0  to  percent 

slopes  .  

Waynesboro  gra\'elly  loam,  0  to  8  percent 

slopes,  moderately  eroded  

Waynesboro  gra\clly  loam,  8  to  15  percent 

slopes,  mofieialely  eroded  

Waynesboro  fira\cll\  loam,  3  to  15  percent 

slopes,  se\-erely  eroded   

Wayn<'slioro  !^ra\-ell\-  loam,  15  to  25  percent 

sloi)es,  modei-ati'ly  eroded  


Area 


Acres 

ill 
341 

t()() 

245 

89 

252 
127 

1,  646 

166 

2,  387 
1,  400 

475 
236 


Extent 


Percent 


(') 


(') 


2 
1 

.  1 
.  6 
.  1 
.  8 
.  5 
.  2 
.  1 


Waynesboro  gra\elly  loam,  15  to  25  i)r'rcenl 
slopes,  severely  erodeil  

Waynest)oro  gravelly  loam,  25  to  45  percent 
slopes,  mo(lerat(4y  eroded.  

Waynesboro  gravelly  sandy  loam,  0  tf)  8  jjer- 
cent  slopes 

Waynesboro  gravelly  sandy  loam,  3  to  15 

percent  slopes,  moderately  eroded 
Waynesboro  gravelly  sandy  loam,  8  to  15 

percent  slopes,  severely  eroded   

Waynesboro  gravelly  sandy  loam,  15  to  25 

percent  slopes,  moderately  eroded  

Wehadkee  silt  loam  

Westmoreland  chaimery  silt  loam,  3  to  10 

percent  slopes,  moderately  eroded 
Westmoreland  channery  silt  loatn,  10  lo  20 

percent  slopes,  moderately  eroded  

Westmoreland  channery  silt  loam,  3  to  20 

p(>rcent  slopes,  severely  eroded  

Westmoreland  channery  silt  loam,  20  to  30 

percent  slopes,  moderately  eroded   

Westmoreland  channery  silt  loam,  20  to  30 

percent  slopes,  severely  eroded 

Total  ^   .   .  . 


A  reji 

Extent 

Pererril 

322 

0,  1 

98 

(') 

1  j:. 

628 

.  2 

103 

(') 

137 

(') 

183 

.  1 

31 1 

.  1 

2ti3 

.  1 

278 

.  1 

82 

(') 

100 

295,  680 

98.  8 

'  Less  than  0.1  percent. 

Ashton  Series 

The  Ashtoii  series  consists  of  deep,  well-drained, 
weakly  developed  soils  on  low  terraces  or  second  bottoms 
along  the  Potomac  River.  These  soils  developed  in  old 
alluvium  that  washed  from  soils  underlain  by  limestone 
or  from  materials  strongly  influenced  by  limestone.  The 
higher  terraces  in  the  same  general  areas  are  occupied 
by  soils  de\eloped  in  more  acid  materials,  such  as  the 
soils  of  the  Ilolston,  IMonongahela,  and  Waynesljoro 
series. 

The  Ashton  soils  are  very  productive  tuider  good 
management.  They  are  limited  in  extent  and  occupy  less 
than  100  acres. 

Profile  of  Ashton  fine  sandy  loam,  0  to  5  percent 
slopes,  in  a  temporarily  idle  area  where  Orchard  Road 
reaches  the  Potomac  River,  in  the  Cohill  community : 

.A„    0  to  9  inches:  dark-brown  (lOYR  3/3)  fine  sandy  loam; 

weak,  fine,  crumb  structure;  slightly  hard  when  dry, 
very  friable  when  moist,  and  nonplastic  and  non- 
sticky  when  wet;  roots  abundant;  neutral;  clear,  wavy 
boundary;  horizon  is  6  to  12  inches  thick. 

Bi  9  to  It)  inclies:  dark-brown  (lOYR  4/3),  heavy  fine  sandy 
loam;  weak,  fine  to  medium,  crumb  to  weak,  very  fine, 
subangular  l)locky  structure;  slightly  hard  when  dry, 
very  friable  when  moist,  and  slightly  plastic  but  non- 
sticky  when  wet;  roots  plentiful:  many  fine  and 
medium  pores;  slightly  acid  to  neutial;  gradual,  wavy 
boundary;  horizon  is  5  to  8  inches  thick. 

B2  16  to  45  inches:  yellowish-brown  (lOYR  5/4),  heavy  loam 
to  light  silt  loam;  weak,  medium,  subangular  blocky 
structure;  moderately  hard  when  dry,  friable  when 
moist,  and  plastic  and  slightly  sticky  when  wet;  roots 
fairly  plentiful  in  upper  portion  to  ]iractically  none  in 
lower  portion:  many  fine  and  medium  pores  and  a  few 
worm  channels:  slightly  acid  to  neutral;  clear,  wavy 
to  irregular  boundary:  horizon  is  18  to  40  inches  thick. 

C  45  to  80  inches:  yellowish-brown  (lOYR  5/4)  fine  sandy 
loam  to  silt  loam;  about  20  percent  fine,  distinct 


mottles  of  very  dark  grayish  brown  (lOYR  3/2);  very 
weak,  very  coarse,  subangular  blocky  structure  be- 
coming somewhat  coarse,  platy  in  places:  moderately 
hard  when  dry,  firm  when  moist,  and  slightly  plastic 
but  nonsticky  when  wet;  no  roots;  moderately  per- 
meable: contains  10  to  15  percent  fine  and  very  fine 
gravel;  moderately  alkaline;  clear,  irregular  boundary; 
horizon  is  24  to  40  inches  thick. 
D  80  to  108  inches  +  :  stratified  gravel,  sand,  silt,  and  clay 
loam;  gravel  makes  up  about  60  percent  of  the  mass 
and  is  waterworn;  fine  materials  are  of  same  color  as 
those  in  the  C  horizon,  but  with  about  40  percent 
mottles;  massive;  hard  when  dry,  firm  to  friable  when 
moist,  with  finer  materials  plastic  and  slightly  sticky 
when  wet;  no  roots;  moderately  rapidly  permeable; 
mildly  to  moderately  alkaline. 

All  horizons  are  variable  in  thickness,  particularly  the 
B2  horizon  of  the  subsoil.  The  variations  apparently 
are  correlated  with  the  topography.  The  soils  that  have 
the  thickest,  most  strongly  developed  B  horizons  are  in 
the  highest  positions.  In  soils  in  the  lower  positions,  the 
B  horizon  is  thinner  and  more  poorly  developed,  but  the 
surface  layer  may  be  2  or  more  feet  thick.  In  a  few 
areas  there  are  some  shale  and  sandstone  fragments  in 
the  substratum,  but  in  most  places  the  coarse  material 
is  chert. 

The  Ashton  soils  are  well  drained,  but  within  the  areas 
tliere  may  be  some  wet  spots  or  shallow  sinks.  The  sur- 
face is  generally  smooth,  but  there  are  a  few  htunmocks 
in  places.  The  low  terraces  on  which  the  Ashton  soils 
are  located  are  generally  at  least  20  feet  higher  than  the 
flood  plains.  These  soils  have  moderate  overall  perme- 
ability and  mcxlerately  high  to  high  moisture-supplying 
capacity.  They  may  be  covered  with  water  dtxring  gen- 
eral floods  at  intervals  of  several  years. 

Ashton  fine  sandy  loam,  0  to  5  percent  slopes 
(AsB). — This  soil  has  the  profile  that  has  been  described. 


14 


SOIL  8UH\KV    SERIES    19.59,   NO.  17 


Jt  is  the  only  .Vsliloii  soil  in  I  lie  coiinly.  Since  there  :iie 
no  great  luizards,  except,  flooding  for  short  periods  at  in- 
tervals mail}'  years  a])art,  this  soil  is  suitable  for  almost  all 
the  crops  grown  in  the  region  with  only  reasonably  good, 
simple  management  practices.  Althongh  the  soil  occurs 
at  compai'at ively  low  elevations,  it  has  fairly  good  air 
drainage  because  of  its  position  above  the  Potomac  Kiver. 
Most  of  the  soil  has  been  planted  to  orchards,  but,  at 
the  time  of  this  report,  the  orchards  had  not  come  into 
production.  Time  will  tell  whether  the  soil  is  well  suited 
to  orchards  or  not.  This  is  one  of  the  better  soils  of  the 
county.  Tt  occupies  oidy  7S  acres  and  is  in  capability 
unit  I-G. 

Atkins  Series 

The  Atkins  series  consists  of  {)()()rly  drained  soils  in 
recently  deposited  allu\  iinn  on  the  flood  plains.  The  soils 
are  generally  along  the  smaller  streams.  The  dejjosits  are 
made  up  of  out  wash  from  acid  shale  and  sandstone  areas. 
On  the  same  materials  and  along  the  same  streams  are 
the  moderately  well  drained  to  somewhat  pooi'ly  drained 
Philo  soils  and  the  well  drained  Pope  soils. 

The  Atkins  soils  are  not  very  e.xtensive.  Because  they 
are  too  wet  for  many  purposes,  they  are  not  of  very 
great  importance  in  agriculture. 

Profile  of  Atkins  silt  loam,  in  a  cutover  foi-esfed  area 
at  a  point  just  off  McC^oys  Ferry  Road,  one-half  mile 
south  of  its  intersection  with  (Jreenspring  Furnace  Koad: 

A,  0  tu  ()  inches:  olivc-hiuwii  (2.5Y  4/4)  silt  loam;  moderate, 
medium,  crumb  structure:  hard  when  dry,  friable 
when  moist,  plastic  and  sticky  when  wet:  roots  abun- 
dant ;  m(>dium  to  slightly  acid;  clear,  smooth  bound- 
ary; horizon  is  4  tt)  8  inches  thick. 

Cig  (■)  to  U)  inches:  dark  grayish-brown  or  olivc-sfray  (2.5Y 
4/"2  or  5Y  4 '2)  silty  clay  loam;  about  30  ))ercent  fine 
and  medium,  distinct  mottles  of  dark  brown  (7.5YR 
4/4^;  compound,  weak,  coarse,  platy  and  moderate, 
medium,  blocky  and  subangular  blocky  structure; 
hard  to  very  hard  when  dry,  rather  firm  when  moist, 
and  plastic  and  sticky  when  wet;  roots  confined 
mostly  to  upper  portion;  slowly  permeable;  strongly 
acid;  clear,  smooth  boundary;  horizon  is  8  to  16 
inches  thick. 

Cog  H)  to  36  inches  -|- :  olive-brown  (2.5Y  4/4)  fine  gravelly 
sandy  clay  loam;  about  40  percent  fine,  medium  and 
coarse,  distinct  mottles  of  dark  gray,  reddish  brown, 
and  strong  brown;  stratified  with  a  \ery  weak, 
coarse,  platy  structure;  very  hard  when  dry,  firm 
when  moist,  and  plastic  and  sticky  when  wet;  prac- 
tically no  roots;  slowly  permeable;  very  strongly  acid. 

The  greatest  variation  in  the  Atkins  soils  of  Washing- 
ton Cotnity  is  in  thickness,  or  in  depth  to  the  gravelly  C 
horizon.  Overall  permeability  is  slow,  and,  though  these 
soils  are  very  wet  for  long  periods,  they  can  become  very 
liard  and  droughty  dtiring  extended  dry  weather.  Their 
moisture-supplying  capacity  is,  therefore,  rather  low, 
even  though  they  may  be  flooded  nearly  every  year  and 
sometimes  for  rather  long  periods.  Because  of  their  ad- 
verse moisture  relationships,  these  soils  are  suited  to  cul- 
tivated crops  only  with  drainage  and  water  control,  and 
then  are  tised  chiefly  for  corn,  forage  crops,  or  pasture. 

Atkins  silt  loam  (At). — This  soil,  which  has  the  profile 
that  has  been  described  in  detail,  is  the  only  Atkins  soil 
in  Washington  County.  Because  of  its  wetness,  it  is 
placed  in  capability  iniit  IIIw-l.    There  are  l.lfi4  acres. 


Any  areas  damaged  by  fri'([uent  overllows  should  be 
maintained  in  [)ermanent  grass  or  woodland. 

Benevola  Series 

The  Henevola  series  consists  of  deep,  \('i  v  well  drained, 
dark-red,  line-text ui'ed  soils  de\eloped  from  rather  soft, 
\ery  line  grained,  sandy  limestone.  The  Benevola  soils 
have  very  strong  structure  in  the  subsoil  and  an  excep- 
tionally high  degree  of  porosity  for  such  hne-tex(ured 
soils.  Locally,  some  small  areas  of  the.se  soils  are  mod- 
erately deep  or  shallow  o\er  ledges  of  the  limestone, 
and  there  are  occasional  oiitcroppings  of  the  saiuly  lime- 
stone. 

The  Ik'iievola  soils  are  on  nearly  level  or  gently  rolling 
valley  floors.  They  are  mostly  in  the  area  from  about 
Bene\-ola  northeastward  nearly  to  Bagtown.  Other  soils 
on  limestone  are  those  of  the  Dtdfield,  Frankstown,  and 
Ilagerstown  series. 

Although  the  Benevola  soils  are  not  extensive,  they  are 
excellent  agricultural  soils  and  have  all  been  cleared  for 
use. 

Profile  of  Benevola  clay  loam,  0  to  '\  percent  slopes, 
in  an  old  cultivated  area  about  BO  yards  south  of  U.S. 
Highway  Xo.  40,  almost  directly  across  that  highway 
from  the  Ilagerstown  drive-in  theater,  about  halfway 
between  Wagner's  Crossroads  and  Mount  Lena: 

A  I,    0  to  6  inches:  dark  reddish-brown  (SYR  3/4)  clay  loam; 

strong,  medium,  granular  to  strong,  very  fine, 
blocky  structm-e;  moderately  hard  when  dry,' friable 
when  moist;  roots  fairly  abundant;  highly  porous; 
contains  occasional  fragments  of  fine-grained,  very 
sandy  limestone;  neutral  in  reaction;  clear,  smooth 
boundary;  horizon  is  5  to  7  inches  thick. 

B>,  6  to  13  inches:  dark  reddish-brown  (SYR  3/4)  fine  clay 
loam  or  clay;  strong,  fine  to  medium,  blocky  and 
subangular  blocky  structure;  blocks  crush  when 
moist  to  strong,  fine  granules;  hard  when  dry, 
friable  to  sonuiwhat  firm  when  moist,  and  plastic 
and  sticky  when  wet;  roots  plentiful;  abimdant 
medium  pores;  slightly  compacted  at  upper  bound- 
ary (probably  a  plowsole) ;  contains  occasional 
fragments  of  sandy  limestone;  neutral;  gradual, 
wavy  V>oundary;  horizon  is  6  to  10  inches  thick. 

B22  13  to  35  inches:  dark-red  (2. SYR  3/6)  clay;  very  strong, 
verj'  fine  to  fine,  blocky  and  subangular  blocky 
structure;  blocks  crush  when  moist  to  ver}^  strong, 
very  fine  granules;  hard  when  dry,  firm  when  moist, 
and  plastic  and  sticky  when  wet;  roots  few  to 
fairly  plentiful  in  upper  portion;  abundant  fine 
and  medium  pores;  continuous  self-colored  clay 
skins  on  aggregates;  clear  to  abrupt,  irregular 
boundary;  horizon  is  18  to  30  inches  or  more  tfiick. 

C  35  to  42  inches  4- :  yellowish-brown  to  light-gray  (lOYR 
5/4  to  5Y  6/1)  gravelly  very  fine  sand  or  loamy  very 
fine  sand;  single-grain  structure;  soft  to  loose  when 
dry,  soft  when  moist,  and  nonplastic  and  nonsticky 
when  wet;  occasional  roots;  rapidly  to  very  rapidly 
permeable;  gravel  consists  of  fragments  of  very 
fine  grained  sandy  limestone  in  all  stages  of  decom- 
position: mildly  to  moderately  alkaline  to  calcareous. 

Some  areas  are  included  that  are  less  intensely  red 
than  the  profile  described.  The  greatest  variation  in  the 
soils,  however,  is  in  depth  to  bedrock.  In  some  places 
the  soil  is  very  deep  but  is  only  a  few  feet  away  from 
an  outcrop  of  the  limestone.  The  stirface  soil  described 
probably  inehides  some  sttbsoil  that  has  been  incorporated 
into  the  surface  layer  as  the  result  of  repeated  plowing. 
In  spite  of  their  fine  texture,  the  overall  permeability 
of  the  Benevola  soils  is  rapid  because  of  the  good  strtic- 


\VASllIN(iTON   COUNTY,  MAH VI-A.\I) 


15 


hire.  \\'lu'n'  I  lie  soil  is  of  iioi'iiiiil  lliickncss  over  rock, 
the  iiioisl  lire  sii|)|)lyin<i- capiicil  v  is  xcry  lii^Wi. 

Henevola  clay  loam,  0  to  .'5  percent  slopes  (BaA) — On 
this  nearly  lovcl  or  jiciitly  slopiiiji"  soil,  tlicre  has  been 
liltlo,  if  any,  erosion.  This  soil  has  (he  profile  descrihed. 
All  of  this  soil  is  in  use  I'oi-  (■ro{)s  or  pastures,  except 
for  occasional  honiesites.  Allh()u<>h  it  is  not  particularly 
subject  to  deterioration,  this  soil  is  dinicult  to  manage, 
except  within  a  very  narrow  range  of  moisture  content, 
because  of  its  fine  texture  and  its  stickiness  and  plasticity. 
For  this  reason,  this  soil  is  in  capability  unit  IIs-1. 
There  are  15!)  acres. 

Benevola  clay  loam,  3  to  8  percent  slopes,  moder- 
ately eroded  (BaB2). — This  soil  is  sloping  and  has  bci'ii 
somewhat  eroded.  It  can  be  used  for  all  the  crops  com- 
monly grown,  with  proper  erosion  control  and  other 
management  practices,  without  serious  further  damage. 
Howevei',  it  is  difficult  to  handle.  This  soil  is  in  capabil- 
ity miit  IIe-19.  There  are  412  acres. 

Benevola  clay  loam,  8  to  15  percent  slopes,  moder- 
ately eroded  (BaC2). — liecause  of  the  hazard  of  erosion 
and  the  general  dilKculty  of  management,  this  soil  is 
in  capability  unit  Ille-oO.  There  are  176  acres. 

Benevola  clay  loam,  8  to  15  percent  slopes,  severely 
eroded  (BaC3). — On  this  soil,  erosion  has  been  active  and 
damaging.  Because  of  the  combination  of  fairly  strong 
slopes  and  severe  erosion,  the  65  acres  of  this  soil  are  in 
capability  miit  IVe-1.  This  soil  can  be  cultivated  in  long 
rotations  with  hay  or  pastui'e  most  of  the  time,  if  other 
good  management  is  practiced. 

Berks  Series 

The  Berks  series  consists  of  well-drained  to  somewliat 
excessively  drained,  rather  shallow  soils  that  developed 
primarily  from  acid  shales.  The  soils  occupy  rolling 
valley  floors  and  rather  steep  ridges.  They  are  extensive 
in  Washington  County  in  the  areas  that  iDorder  Conoco- 
cheague  Creek  and  in  the  ridge  and  valley  section  west 
of  Fairview  Mountain.  In  some  places  the  shale  under- 
lying the  Berks  soils  is  somewhat  influenced  by  lime- 
stone. 

The  Berks  soils  are  somewhat  similar  to  the  INIonte- 
vallo  soils  in  appearance,  but  the  underlying  shale  is 
softer  and  more  readily  incorporated  into  the  soil  by 
plowing  and  cultivation  than  the  shale  mider  the  Monte- 
vallo  soils,  and  it  is  more  permeable  to  water  and  to 
roots.  The  Berks  are  also  more  productive  than  the  shal- 
lower ISIontevallo  soils. 

Profile  of  Berks  shaly  silt  loam,  ;>  to  8  percent  slopes, 
moderately  eroded,  in  a  cidtivated  area  on  Independence 
Koad,  11/4  miles  northeast  of  Conococheague  Bridge: 

Ap    0  to  8  inches:  dark-brown  (lOYR  4/3)  shaly  silt  loam; 

moderate,  medium,  crumb  structure;  friable  when 
moist,  and  slii;htly  plastic  and  slightly  sticky  when 
wet;  roots  al^undant ;  strongly  acid;  clear,  smooth 
boundary;  horizon  is  6  to  9  inches  thick. 

B2  8  to  13  inches:  yellowish-brown  (lOYR  5/4),  shaly, 
heavy  silt  loam;  weak,  fine  to  medium,  subangular 
blocky  structure;  friable  when  moist,  and  moder- 
ately plastic  and  slightly  sticky  when  wet;  roots 
fairly  common;  abundant  pores;  thin,  almost  con- 
tinuous, self-colored  clay  skins;  30  to  40  percent 
shale;  very  strongly  acid;  clear,  wavy  boundary; 
horizon  is  3  to  0  inches  thick. 


C  13  lo  24  inches:  dark  yellowish-brown  dOYR  4/4),  frji«- 
in(Mited,  soft  shale,  strongly  coaled  with  silt  and  clay; 
very  few  roots;  rapidly  permeable;  fine  material 
very  strongly  acid;  gradual,  wavy  to  irregular 
boundary;  horizon  is  8  to  24  inches  thick. 

Dr  24  inches  + :  moderately  hard,  yellowisli-browii  <»r 
l)rownish-y(;llow  shale. 

Thei-e  is  considerable  variation  in  I  he  amount  of  shale 
fragments  in  the  pi-olile.  Some  undisturbed  areas  have 
very  little  shale  in  the  surface  soil.  There  is  considerable 
shale  in  the  surface  layer  of  practically  all  plowed  areas, 
however,  because  plowing  to  normal  de[)lh  almo.st  in- 
variably incorporates  some  of  the  more  shaly  Bv  horizon 
into  the  [)l()w  layei'. 

In  some  places  the  subsoil  has  a  slightly  reddish  cast, 
approaching  reddish  brown  (5YK  5/4)  in  color.  In  place.s 
there  are  tliin  seams  of  sandstone  in  the  parent  shale, 
particularly  in  the  western  part  of  the  county.  In  sucli 
places  the  soil  tends  to  be  a  little  less  silty  than  the  soil 
described  above,  and  may  contain  few  to  many  flat  frag- 
ments of  sandstone. 

Berks  channery  loam,  ridges,  0  to  10  percent  slopes, 
moderately  eroded  (BcB2). — Most  of  this  soil  is  on  ridge- 
tops.  It  has  a  profile  like  the  one  described,  but  it  is 
somew^hat  less  silty  .and  more  sandy  and  contains  20 
percent  or  more  of  flat  fragments  of  hard  sandstone  up 
to  6  inches  in  length.  The  soil  contains  considerable 
shale.  The  sandstone  fragments  may  be  present  through- 
out the  profile  Init  are  generally  more  abimdant  on  and 
near  the  surface.  On  the  gentle  slopes  the  low  moisture 
capacity,  hence  low  production,  of  the  soil  is  a  more  im- 
portant management  problem  than  erosion.  The  815  acres 
are  in  capability  miit  IIs-7. 

Berks  channery  loam,  ridges,  10  to  20  percent  slopes, 
moderately  eroded  (BcC2). — The  slope  of  this  soil  is  great 
enough  to  make  risk  of  erosion  the  nmnber  one  manage- 
ment problem  if  good  co\-er  is  itot  maintained.  The  soil 
is  also  droughty  and  of  rather  low  productivity,  but  it 
can  be  cultivated  safely  with  careful  management.  This 
soil  is  perhaps  better  suited  to  hay  crops  and  to  sodded 
orchards  than  to  clean-cultivated  crops.  The  879  acres 
are  in  capability  unit  IIIe-32. 

Berks  channery  loam,  ridges,  10  to  20  percent  slopes, 
severely  eroded  (BcC3). — This  soil  has  been  seriously  dam- 
aged b}'  erosion.  The  original  surface  soil  is  nearly  all 
gone,  and  there  may  l)e  occasional  shallow  gullies.  In 
this  condition  the  soil  is  suited  to  only  occasional  cul- 
tivation of  crops  in  long  rotations  with  hay  or  pasture 
l)lants,  or  to  sodded  orchards.  There  are  104  acres,  in 
capal)ility  unit  IVe-32. 

Berks  channery  loam,  ridges,  20  to  30  percent  slopes, 
moderately  eroded  (BcD2). — This  soil  is  steeper  than  the 
otie  just  descrilted,  but  erosion  has  been  less  severe, 
largely  because  much  of  the  soil  has  remained  in  forest. 
There  is  a  strong  hazard  of  erosion  because  of  steepness, 
so  this  soil  has  also  been  placed  in  capability  unit  IVe-32. 
There  are  632  acres  in  this  county. 

Berks  shaly  silt  loam,  0  to  8  percent  slopes  (BeB). — 
This  soil  has  a  profile  like  the  one  described  for  the  se- 
ries, except  that  there  has  been  practically  no  erosion.  It 
has  either  been  in  woodland  or  has  been  especially  well 
managed.  Because  erosion  has  not  been  serious,  the 
shallowness  of  the  soil  and  its  low  moisture-holding  capa- 


16 


SOIL   SUUXEY   SERIES    1959,  NO.  17 


citv  iuv  the  juost  important  iiianaaciiitMii  factors.  There 
are  1,()()'2  acres  of  this  soil,  in  capaMlity  unit  IlIs-:2. 

Berks  shiily  silt  loam,  .}  to  S  percent  slopes,  moder- 
ately eroded  (BeB2). — This  soil  has  the  prohU'  that  has 
been  described  in  detaih  Krosioii  has  been  active,  even 
thouoli  slopes  are  not  ver_y  <>reat.  Jiecause  most  of  tliis 
soil  is  in  cultivation,  the  erosion  hazard  is  the  most  si<r- 
nificant  manai:enienl  pr()l)lem.  Tlie  soil  also  is  thin  and 
somewhat  drouiihty.    I'lie  acres  of  this  soil  are  in 

ca})al)ilit y  unit  II  Is  -J. 

Berks  shaly  silt  loam,  8  to  15  percent  slopes,  mod- 
erately eroded  (BeC2). — On  this  soil,  erosion  has  been  ac- 
tive,  allhouiih  not  severe.  The  soil  is  suitable  for  i-e<>-u]ar 
culti\ation  if  careful  ei'osion  conliol  is  pi-acticed.  Meas- 
ures to  maintain  fertility  and  umisture  are  also  \ery  im- 
portant. The  I'.^iSl  acres  of  this  soil  are  in  capability 
unit  I\'e-.")'2. 

Berks  shaly  silt  loam,  15  to  25  percent  slopes,  mod- 
erately eroded  (BeD2). — There  is  such  a  ^  reat  erosion  haz- 
ard thai  this  soil  nnist  be  very  cai-efully  mana<red  and 
l)i-()tccH'd  if  it  is  lo  be  cult  i\ ali'<i.  \'ery  lon<:-  rotations 
with  few  clean-tilled  ciops  will  be  necessary  if  this 
soil  is  to  be  preserved.  It  occupies  !552  acres  and  is  in 
ca])ability  unit  Vie-;'). 

Berks  silt  loam,  ridges,  0  to  10  percent  slopes,  mod- 
erately eroded  (BkB2). — This  soil  has  a  i)roHle  much  like 
the  one  desciibed  for  the  Berks  series,  excei)t  that  the 
surface  soil  contains  fewer  fra<iinenfs  of  shale.  It  is  con- 
lined  chielly  to  the  ridi;v  ai'eas  in  the  western  pai't  of 
the  county.  This  soil  is  in  capability  unit  IIs-T.  There 
are  ()!).">  acres  in  the  county. 

Berks  silt  loam,  ridge.s,  10  to  20  percent  slopes,  mod- 
erately eroded  (BkC2). — Erosion  on  this  soil  has  been 
oidy  mo(U'i-ate,  but  there  is  definitely  a  strong"  hazard 
of  erosion.  For  tliis  reason,  the  acres  are  [)laced  in 
cai)al)ility  unit  lIIe-;>2. 

Berks  silt  loam,  ridges,  10  to  20  percent  slopes,  se- 
verely eroded  (BkC3). — This  soil  has  lost  ni()>t  of  it>  oi-io-- 
inal  surface  soil  and  in  places  some  of  tlie  orioinal 
subsoil.  It  is  less  suitable  for  cultivation  and  requires 
much  more  carefid  mana<i-ement  than  the  similar,  but 
only  moderately  eroded,  soil.  This  soil  occui)ies  ;50-t  acres 
and  is  in  capability  unit  IVe-32. 

Berks  silt  loam,  ridges,  20  to  30  percent  slopes,  mod- 
erately eroded  (BkD2). — This  soil  is  steep,  but  it  has  been 
forested  aiul  erosion  has  not  been  severe.  It  can  be 
cropped  with  very  careful  management.  The  27.')  acres 
are  in  capability  unit  IVe-32. 

Berks  soils,  ridges,  20  to  45  percent  slopes,  severely 
eroded  (BoE3). — The  soils  of  this  unit  are  stee])  and  are 
so  severely  eroded  that  few  characteristics  of  the  lierks 
series  remain.  The  ori<xinal  surface  soil  and  some  of  the 
subsoil  have  been  eroded  away,  and  the  remaining  soil 
over  the  shale  rock  is  only  a  thin,  irregular  mantle.  Such 
soils  are  not  suitable  for  crops,  lender  the  best  manage- 
ment, they  may  j)roduce  some  grazing,  but  their  most 
suitable  use  is  probably  as  reforested  woodland.  There 
are  82;^  acres,  in  capability  unit  Vlle-o. 

Berks  soils,  ridges,  30  to  60  percent  slopes  (BoF). — 
These  are  small,  very  steep  areas  of  various  Berks  soils 
— either  the  silt  loam,  the  channery  loam,  or  the  shaly 
silt  loam.    For  the  most  i)art,  they  have  I'emained  in 


forest  and  have  not  been  significantly  damaged  l)y  ero- 
sion. The  3,987  acres  are  in  capability  unit  VIIe-3. 

Braddock  Series 

The  Braddock  series  consists  of  deep,  well-drained,  red 
soils  devel()[)ed  in  materials  that  weathered  from  A'ery 
old  rockslides  on  the  foot  slopes  of  movuitains  and  on 
benchlike  ai'eas  on  mountainsides.  The  Jiraddock  soils 
ai-e  gravelly,  antl  in  a  few  places  they  are  somewhat 
stony.  The  materials  from  which  they  have  been  devel- 
oped consist  laig-ely  of  (|uarlzitic  sandstone,  but  in  many 
places  there  is  some  greenstone  or  metabasalt  and  some 
hard,  white  (|uart/,ite.  In  loral  spots  there  is  also  some 
shale. 

The  Braddock  soils  in  A\'ashington  (  ounty  occur  on 
and  below  the  western  slopes  of  I)lue  IJidge  and  Flk 
Ividge.  They  are  associated  with,  and  in  many  ])laces 
ai'e  mixed  with,  soils  of  the  Thurmont  series  "that  ai-e 
more  yellow  than  I'ed.  Because  of  this  association  and 
mixture,  all  of  the  Braddock  soils  of  the  county  have 
been  mapped  in  undi lierent iaf ed  mapping  units  with 
Thurmont  soils. 

Most  areas  are  in  forest,  but  some  aiv  cultivated.  The 
soils  are  especially  suited  to  orchards,  but  they  can  also 
be  used  for  general  crops  and  ])astures.  They  are  faii-ly 
pi-oductive,  but  their  content  of  gravel  makes  them  some- 
what difiicull  to  handle. 

Profile  of  Bi'addock  gravelly  loam,  3  to  8  percent 
slopes,  moderately  eroded,  in  a  forested  area  just  east  of 
Mount  Lena  Road,  about  120  yards  northeast  of  its  in- 
ler.section  with  Kuble  Road: 

A,    0  to  4  inches:  dark-l)rovvn  (7.5YR  3/2)  gravelly  loam; 

moderate,  fine,  granular  structure;  slightly  hard  when 
dry,  very  friable  when  moist,  and  slightly  plastic  and 
slightly  sticky  when  wet;  roots  abundant;  about  20 
percent  gravel;  slightly  acid;  clear,  wavy  boundary; 
iiorizon  is  2  to  4  inches  thick. 

A2  4  to  11  inches:  dark-brown  (lOYR  3/3),  gravelly,  heavy 
loam;  moderate,  fine,  cruml)  to  graindar  structure; 
moderately  harcl  when  dry,  friable  when  moist,  and 
slightly  plastic  and  slightly  sticky  when  wet;  roots 
plentiful;  many  fine  and  medium  and  a  few  large 
pores;  about  20  percent  gravel;  medium  acid;  clear, 
wavy  boundary;  horizon  is  4  to  8  inches  thick. 

Bi  11  to  22  inches:  strong-brown  (7. SYR  5/6),  gravelly,  heavy 
loam;  weak,  medium,  subangular  iilocky  structure; 
moderately  hard  to  hard  when  dry,  friable  to  moder- 
ately firm  when  moist,  and  moderately  plastic  and 
sticlcy  when  wet;  roots  plentiful  in  upper  portion, 
fewer  below;  many  fine  and  medium  pores;  20  to  25 
percent  gravel;  strongly  acid;  gradual,  wavy  boun- 
darv;  horizon  is  8  to  14  inches  thick. 

B2  22  to  38  inches:  yellowish-red  (SYR  4/8),  gravelly,  light 
sandy  clay  loam;  moderate,  medium,  blocky  and  sub- 
angular  blocky  structure;  hard  to  very  hard  when 
dry,  firm  when  moist,  plastic  and  sticky  when  wet; 
roots  few;  many  fine  and  medium  pores;  about  20 
percent  gravel;  thin,  continuous,  self-colored  clay  coats 
on  aggregates  and  in  pores  and  root  channels;  very 
strongly  acid;  gradual,  smooth  to  wavy  boundary; 
horizon  is  14  to  28  inches  thick. 

B3  38  to  46  inches:  yellowish-red  (5Y'R  5/8),  gravelly,  very 
gritty  sandy  clay  loam;  moderate,  medium,  blocky 
structure;  hard  when  dry,  friable  to  firm  when  moist, 
plastic  and  sticky  when  wet;  roots  few;  many  fine  and 
medium  pores;  about  20  percent  gravel;  thick,  red 
clay  skins  in  pores  and  in  root  channels  and  on  some 
aggregate  surfaces,  with  black  films  on  other  surfaces; 
extremely  acid;  gradual,  wavy  boundary;  horizon  is 
8  to  12  inches  thick. 


WASHINGTON  COUNTY,  MAHYLAN'I) 


17 


C  4()  to  00  inches  |  :  yollowisli-rcd  (SYR  5/f))  nmvclly 
.siiiuly  clay,  .soiiicwliut  variof?!itc(l  svitli  faint  rcddisii- 
ycllow  spots  and  streaks;  very  weak,  coarse,  hlocky 
structure;  hard  to  very  luird  when  dry,  frial)le  to  firm 
when  moist,  and  plastic  and  moderately  sticky  when 
wet;  a  few  large  tree  roots;  many  fiiu-  and  medium 
l)()res;  ai)out  40  percent  gravel;  some  l)lack  films  on 
aggregates  and  on  gravel;  extremely  acid. 

The  Briuldock  soils  vary  soniewliat  in  conhMit  of  <fr!ivel 
and  in  color.  Sonii'  areas  are  somcwliat  cohhly,  particu- 
larly those  alono;  (lraina«ie\vays.  The  Hraddock  soils 
may  be  even  more  red  than  the  rei)resentalive  profile 
described.  More  frequently  the  \ariation  is  toward  the 
yellow  side,  where  (he  soil  (grades  to  soils  of  the  'J'hnr- 
inont  series.  Tliese  soils  in  many  places  have  a  sort  of 
landslide  topoiii'aphy  with  complex  or  brok'en  slopes. 

Braddock  and  Thurmont  siJivelly  loams, .}  to  S  per- 
cent slopes,  moderately  eroded  (BrB2). —  riiis  unit  in- 
cludes the  Hiaddock  soil  that  has  been  described  in  de- 
tail, alon^-  with  some  areas  of  Thurmont  oravelly  loam 
with  similar  slope  and  erosion.  It  ()ccu[)ies  the  least 
slopino-  areas;  there  are  practically  no  really  level  areas. 
There  has  been  some  erosion  on  most  of  tlie  soil,  but  some 
small  areas  are  included  where  (here  has  been  no  erosion. 
Fairly  oood  crops,  especially  orchard  crops,  can  be  o-rown 
with  reasonably  ^-ood  inanao'ement.  Because  of  (he  haz- 
ard of  erosion,  however,  the  575  acres  of  this  unit  are  in 
capability  unit  lie— f. 

Braddock  and  Thurmont  gravelly  loams,  8  to  15  per- 
cent slopes,  moderately  eroded  (BrC2). — Because  of  the 
de^rree  of  slope,  "ood  manaoemen(  must  be  practiced  if 
this  soil  is  to  be  cultivated  safely.  Xearly  all  crops  can 
be  grown  if  they  are  in  suitable  rotadons.  The  soil  is 
especially  sui(ed  to  orchards  and  ben-y  plantings.  The 
507  acres  are  in  capability  unit  Ille— 1. 

Braddock  and  Thurmont  gravelly  loams,  15  to  25 
percent  slopes  (BrD). — These  are  the  steepest  Braddock 
and  Thui-mont  soils.  There  has  been  active  erosion  on 
only  a  few  acres.  The  rest  of  the  acreage  was  in  forest, 
which  protecied  (he  soil  against  erosion.  These  areas 
could  be  culti\'ated  wi(h  very  careful  management.  This 
soil  occupies  only  7-t  acres.  It  is  in  capability  unit  IYe-3. 

Brinkerton  Series 

The  Brinkerion  series  consists  of  poorly  drained  soils 
in  areas  of  acid  shale,  particularly  within  large  areas 
of  soils  of  the  Berks  and  Afontevallo  series.  The  Brinker- 
ton soils  occur  in  tipland  depressions  around  drainage 
heads,  and  along  narrow  foot  slopes  ])ordering  small 
drains.  They  were  developed  in  fine  materials  that  were 
washed  down  from  the  surrounding  areas  of  shale  soils. 
The  Brinkerton  soils  have  an  extremely  fine  textured  and 
strongly  mottled,  bluish  or  greenish  stibsoil,  which  is  an 
indication  of  poor  aeration  and  drainage.  They  occur 
only  in  small,  sca((ered  areas. 

Profile  of  Brinkerton  silt  loam,  0  to  8  percent  slopes, 
in  a  paslured  area  just  o(T  Walnut  Point  Road,  about 
one-fourth  mile  sottth  of  Jones  Chapel : 

Ap  0  to  7  inches:  dark-brown  to  olive-brown  (lOYR  3/3  to 
2.5Y  4/4)  silt  loam:  moderate,  medium  to  coarse, 
crumb  structure;  hard  to  very  hard  when  dry,  fri- 
able when  moist,  and  moderately  plastic  and  moder- 
ately sticky  when  wet;  roots  plentiful;  medium  acid; 


(tleiir  to  abrupt,  smooth  to  slightly  wavy  boundary; 
hori/on  is  5  to  7  inches  thick. 

Bju  7  to  15  inches:  light  oliv(?-brown  f2.5Y  5/4)  shaly  silty 
clay  loam;  about  30  jjcrccnt  medium,  distinct  mot- 
tles of  liglit  olive  gray  (5Y  0/2);  strong,  medium, 
blocky  structure;  v(;ry  harfi  whr^ii  flry,  firm  to  v(fry 
firm  when  moist,  and  ])lastic  and  sticky  wlx-n  wet; 
roots  rather  few;  many  fine  but  few  larger  fjoros; 
shglitly  acid;  gradual,  wavy  to  irr<;gular  boundary; 
horizon  is  0  to  9  inches  thick. 

I^i'.'iK  15  to  31  inches:  clay,  evenly  mottled  with  coarse,  di.s- 
liiict  sj)lotches  of  gray  and  olive  brown  f5Y  0/1  and 
2.5^'  .5/0);  very  strong,  coarse,  blocky  structure; 
v(!ry  hard  when  dry,  very  firm  wh(!ii  moist,  and  very 
])lastic  and  very  sticky  when  wet;  a  very  few  fine 
roots;  only  a  f(!W  very  fine,  visible  pores;  medium 
acid;  abrupt,  irregular  boundary;  horizon  is  10  to 
18  inches  thick. 

C,g  31  to  42  inches  +:  greenish-blue  to  robin's-egg  blue 
very  fine  clay;  about  5  percent  small  specks  and 
narrow  streaks  of  rusty  brown;  compound,  weak, 
very  coarse,  platy  and  weak,  medium,  blocky  struc- 
ture; v-ery  hard  when  dry,  very  firm  when  moist,  and 
very  plastic  and  very  sticky  when  wet;  a  few  scat- 
tered, single,  fine  roots;  very  slowly  permeable,  with 
no  visible  pores  except  for  the  widely  spaced  fine 
root  channels;  blue  color  almost  coniplet(?ly  fades  to 
light  gray  on  drying;  neutral. 

Most  areas  are  more  acid  than  the  one  described,  wliich 
was  undoubtedly  limed.  Bltiish  or  greenish  colors  always 
appear  in  the  sul)stratum  but  may  not  be  so  s(rong  as  in 
the  profile  described,  and  (he  subsoil  may  not  every- 
where be  so  fine.  Although  draimige  is  poor  and  the  soil 
may  be  wet  for  long  periods,  the  moisture-supplying 
capacity  of  this  soil  is  rather  low.  In  many  locations 
there  is  temporary  flooding  during  ])eriods  of  very  heavy 
or  ])rolonged  rains. 

Brinkerton  silt  loam,  0  to  8  percent  slopes  (BtB). — 
This  is  the  otily  IW-inkertoii  soil  mapped  in  the  cotmty. 
This  soil  has  (he  profile  tha(  has  been  described  in  detail. 
Althotigli  some  slo[)es  are  as  steep  as  8  percent,  most  of 
this  soil  is  nearly  level  to  slightly  depressed.  Erosion  is 
generally  not  a  problem,  but  a  few  strongly  sloping 
spots  have  some  rills  or  a  few^  shallow  gullies.  The  great- 
est problem  in  managing  this  soil  is  that  of  drainage  antl 
wetness.  For  this  reason,  the  236  acres  of  this  soil  are  in 
capability  tmit  IIIw-1. 

Buchanan  Series 

The  Buchanan  series  consists  of  moderately  well 
drained  soils  that  have  a  platy  fragipan  in  the  lower 
stibsoil.  These  soils  were  de^-eloped  in  gravelly  colluvial 
deposits  on  the  lower  slopes  of  low  mountains.  The 
parent  material  consists  of  fine-grained,  acid  sandstone 
and,  in  a  few  [)laces,  some  acid  sliale.  Seeps  and  wet- 
weather  springs  are  fairly  common. 

These  soils  are  rather  low  in  productivity  and  are  little 
tised  in  the  county  except  for  forests.  Cleared  areas  can 
be  used  for  general  crops,  btit  there  are  many  idle  areas. 
Little  acreage  is  used  for  orchards  or  pasttires.  The 
Buchanan  soils  are  not  extensive  in  the  county,  occurring 
mostly  in  small,  widely  scattered  areas  that  amount  to 
less  than  1,600  acres.  Of  this,  approximately  600  acres 
have  been  cleared,  and  the  rest  remains  in  forest. 

Profile  of  Buchanan  gravelly  loam,  0  to  3  percent 
slopes,  in  a  forested  area  jttst  east  of  Long  Eidge  Road, 
two-tenths  of  a  nnle  south  of  its  intersection  with  LT.S. 


18 


SOIL   SURVEY  SERIES    1959,  NO.  17 


Highway  No.  40,  on  the  lower  western  slope  of  Tonolo- 
way  liidge : 

A,  0  to  '2  inches:  black  (lOYIl  2/1),  highly  organic  gravelly 
loam;  weak,  fine,  crumb  structure;  soft  to  very 
sHghtly  hard  when  dry,  very  friable  when  moist, 
and  very  slightly  plastic  but  nonsticky  when  wet; 
matted  with  fine  roots;  gravel  consists  chiefly  of 
angular  sandstone;  strongly  acid;  clear  to  abrupt, 
wavy  boundary;  horizon  is  1  to  2  inches  thick. 

.•\.,  2  to  7  inches:  yellowish-brown  (lOYR  5/4),  gravelly, 
heavy  loam;  moderate,  coarse,  crutnb  structure; 
moderately  hard  when  dry,  friable  when  moist,  ancl 
slightly  jjlastic  and  slightly  sticky  wlien  wet;  roots 
})lentiful;  abundant  fine  and  medium  pores;  very 
strongly  acid;  abrupt,  wavy  boundary;  horizon  is 
3  to  8  inches  thick. 

B21  7  to  18  inches:  brownish-yellow  (lOYR  0/0),  somewhat 
gravelly  silty  clay  loam;  strong,  fine,  subangular 
blocky  structure;  hard  when  dry,  moderately  firm 
when  moist,  and  plastic  and  sticky  when  wet;  roots 
rather  few;  many  fine  and  some  medium  ])ores;  very 
strongly  acid;  clear,  wavy  boundary;  horizon  is  3  to 
12  inches  thick. 

B22,n  18  to  34  inches:  light  yc^llowish-brown  (2.5Y  G/4)  clay 
loam;  about  40  percent  medium,  distinct  mottles  of 
r(>ddish  yellow  (7.5Y11  6/0);  comj)ound,  moderate, 
medium,  platy  and  strong,  fine,  subangular  blocky 
structure;  very  hard  when  dry,  firm  but  brittle 
when  moist,  and  jjlastic  and  sticky  when  wet;  no 
visible  roots;  many  fine  but  few  large  ])ores;  very 
strongly  acid;  clear,  wavy  boundary;  horizon  is  12 
to  20  inches  thick. 

C  34  to  00  inches  -f  :  disintegrated  sandstone  and  shale 
with  some  silt  and  clay  of  intricately  mixed,  dark 
yellowish-brown  and  black  colors;  very  weak,  coarse, 
platy  structure;  moderately  hard  when  dry,  firm 
when  moist,  and  slightly  plastic  and  slightly  sticky 
when  wet;  no  roots;  verv  strongly  acid. 

Nearly  all  areas  of  Buchanan  soils  are  gi'avelh',  but 
in  places  the  gravel  content  is  low.  Thei"e  is  generally 
more  gravel  in  the  surface  layer  than  in  the  subsoil.  The 
map  indicates  some  stones  in  places  and  also  some  small 
spots  that  are  wetter  than  normal.  In  places  the  upper 
subsoil  is  tliin  or  almost  lacking,  and  in  these  areas  the 
mottled,  platy  lower  subsoil  is  generally  within  about 
10  inches  of  the  surface. 

Buchanan  gravelly  loam,  0  to  3  percent  slopes  (BuA). — 
This  soil  has  the  prolile  tliat  has  been  described,  and 
includes  the  best  areas  of  Buchanan  soils  in  the  county. 
Slopes  are  not  strong  and  erosion  is  not  a  great  hazard, 
but  the  soil  tends  to  be  rather  wet  on  these  more  level 
areas.  The  77  acres  of  this  soil  are  in  capability  miit 
IIw-1,  and  most  of  the  acreage  is  cidtivated. 

Buchanan  gravelly  loam,  3  to  8  percent  slopes,  mod- 
erately eroded  (BuB2). — On  this  soil,  erosion  lias  been 
rather  active.  The  slopes  drain  better  than  the  more 
level  areas,  so  erosion  is  a  greater  hazard  than  wetness. 
The  866  acres  are  in  capability  unit  IIe-13. 

Buchanan  gravelly  loam,  8  to  15  percent  slopes,  mod- 
erately eroded  (BuC2). — Erosion  is  a  serious  hazard  on 
this  soil.  Crops  can  be  grown  with  suitable  rotations  and 
careful  management.  There  are  562  acres,  in  capabilitv 
unit  IIIe-13. 

Buchanan  gravelly  loam,  15  to  25  percent  slopes, 
moderately  eroded  (BuD2). — This  is  the  steepest  Buchanan 
soil.  In  most  places  the  soil  is  still  forested.  In  the  few- 
spots  that  have  been  cleai'ed,  cultivation  is  hazardotis  un- 
less special  protective  measures  are  taken.  The  86  acres 
are  in  capability  unit  IVe-9. 


Calvin  Series 

The  Calvin  series  consists  of  shallow  to  moderately 
deep,  very  well  drained  soils  develoiK'd  in  materials  that 
weathered  from  acid,  red  shale,  with  some  inclusions 
of  acid,  red  sandstone.  The  Cahiii  soils  are  in  the 
western  part  of  the  county,  generally  along  with  soils 
of  the  Berks,  Litz,  and  Montevallo  series. 

The  Calvin  soils  in  some  places  have  w'ell-defined 
boundaries,  but  in  many  places  they  are  so  intricately 
mixed  with  soils  of  the  Berks  or  Montevallo  series  that 
they  cannot  be  sei)arated  on  the  soil  map.  Such  areas 
of  mixed  soils  are  known  as  soil  complexes. 

Most  areas  of  Calvin  soils  are  still  in  forest,  but  some 
have  been  cleared  for  general  crops,  orchards,  or  pastures. 

Profile  of  Calvin  channery  loam,  10  to  20  percent  slopes, 
moderately  eroded,  in  a  forest  50  yards  we.st  of  Rice 
Koad,  about  six-tenths  of  a  mile  south  of  the  Pennsylvania 
State  line : 

Ai    0  to  1  inch:  very  dark  brown  (lOYR  2/2)  channery  loam; 

weak  to  moderate,  fine,  granular  structure;  soft  when 
dry,  very  friable  when  moist,  and  slightly  plastic  and 
slightly  sticky  when  wet;  roots  abundant;  contains 
about  15  percent  flat  fragments  of  hard  sandstone  and 
some  shale;  medium  acid;  abrupt,  irregular  boundary; 
horizon  is  ]2  inch  to  2  inches  thick. 

.^2    1  to  3  inches:  reddish-brown  (SYR  4/4)  channery  loam; 

weak,  medium,  granular  to  crumb  structure;  slightly 
hard  when  dry,  friable  when  moist,  and  moderately 
plastic  and  moderately  sticky  when  wet ;  roots  plentiful; 
about  30  percent  sandstone,  with  some  shale:  strongly 
acid;  gradual,  irregular  boundary;  horizon  is  2  to  4 
inches  thick. 

As  3  to  9  inches:  reddish-brown  Cl.^Wi  5/4)  very  channery 
loam;  moderate,  fine,  subangular  blocky  structure; 
hard  wlien  dry,  friable  to  firm  when  moist,  and  moder- 
ately plastic  and  moderately  sticky  when  wet;  roots 
rather  ])lentiful;  contains  40  to  50  percent  flat,  stone 
fragments;  very  strongly  acid;  gradual  to  clear,  ir- 
regular boundary;  horizon  is  5  to  8  inches  thick. 

B2  9  to  21  inches:  red  (2.5YR  5/6),  channery,  heavy  loam  or 
light  silt  loam;  moderate,  medium  to  coarse,  blocky 
and  subangular  blocky  structure;  very  hard  when  dry, 
firm  when  moist,  and  plastic  and  sticky  when  wet; 
few  roots;  many  fine  and  medium  pores;  some  clay 
skins  in  pores  and  on  aggregates;  very  strongly  acid; 
clear,  wavy  boundary;  horizon  is  8  to  12  inches  thick. 

Ci  21  to  31  inches:  variegated  yellowish-red  and  reddish- 
yellow  (SYR  4/6  and  0/8)  channery  silt  loam  and 
decomposed  shale;  inherited,  coarse,  laminar  struc- 
ture; hard  when  dry,  firm  when  moist,  and  plastic 
and  sticky  when  wet;  practically  no  roots:  very 
strongly  acid;  gradual,  wavy  to  irregular  boundary; 
horizon  is  8  to  12  inches  thick. 

C2  31  to  42  inches  +:  reddish-yellow  (SYR  0/6),  partially 
decomposed  shale  with  some  hard  sandstone;  about 
10  percent  fine,  illuvial  material;  fine  material  sticky 
and  plastic  when  wet;  no  roots;  very  strongly  acid. 

The  depth  to  the  substratum  ranges  from  about  12  to 
nearly  30  inches,  with  the  average  18  to  20  inches.  In  some 
1)1  aces  the  surface  layer  is  slightly  more  sandy  than  that  in 
the  profile  describee!.  Slopes  are  complex  in  some  places, 
but  they  are  smooth  and  simple  in  most  areas.  The 
Calvin  soils  are  so  well  drained  that  they  may  be  droughty 
in  periods  of  limited  rainfall. 

Calvin  channery  fine  sandy  loam,  3  to  10  percent 
slopes,  moderately  eroded  (CaB2). — This  soil  has  a  profile 
like  the  one  described  as  representative  of  the  Calvin 
series,  except  that  the  channery  surface  soil  is  fine  sandy 
loam  and  the  subsoil  is  somewhat  more  friable  than 
the  one  described.  Because  of  the  sandiness,  the  soil  tends 


WASmN(;TON   COrNTV,  MAliVLANI) 


19 


(()  l)c'  soiiicwlmt  (li-()u<ilit y,  but  the  lia/.ard  of  cr'osioii  is 
])r()l)iil)Iy  the  most  import ivnt  maiiii<;iMn('nt  problem.  Near- 
ly all  of  this  soil  occurs  in  the  vicinity  of  Exline  in  the 
extreme  western  part  of  the  county.  It  is  used  for  all 
cro])s,  but  appears  to  be  especially  desirable  for  peach 
and  api)le  orchards.  The  '27(5  acres  are  in  capabilitv  unit 
Ile-lO. 

Calvin  channery  loam,  3  to  10  percent  slopes,  mod- 
erately eroded  (CcB2). — This  soil  has  a  prolile  like  the 
one  described.  Areas  of  it  make  up  most  of  tlie  culti- 
vated Calvin  channery  loams.  Much  of  it  is  in  forest. 
Because  of  actual  or  ]wtential  erosion,  this  soil  is  in 
capability  unit  Ile-ld.  There  are  890  acres  in  the  county. 

Calvin  channery  loam,  10  to  20  percent  slopes,  mod- 
erately eroded  (CcC2). — A  prolile  of  this  soil  is  (Icscrilied 
as  represent  at  i\e  of  the  series.  On  these  slopes  erosion  is 
a  serious  hazard.  The  1,978  acres  are  in  capability  unit 
I  He  10. 

Calvin  channery  loam,  20  to  .30  percent  slopes  (CcD). — 
All  but  a  few  of  the  ()51  acres  of  this  soil  are  still  heavily 
forested;  hence,  there  has  been  little,  if  any,  erosion. 
Tiie  slopes  ai'e  great  enough,  however,  so  that  any  at- 
tempted cultivation  would  be  hazardous.  For  this  reason, 
tliesoil  is  i)laced  in  cai)ability  unit  IVe-lO. 

Calvin  channery  loam,  20  to  30  percent  slopes,  mod- 
erately eroded  (CcD2). — This  soil  is  like  the  one  just  de- 
.scribed,  except  that  there  has  been  active  erosion.  It  is 
still  suitable  for  some  cultivation,  however,  if  it  is  care- 
fullv  managed  and  protected.  The  224  acres  are  in  capa- 
bility unit  IVe-10. 

Calvin  channery  loam,  30  to  45  percent  slopes  (CcE). — 
Here  are  859  acres  that  are  steep  but  have  not  been  eroded. 
Most  of  the  acreage  is  in  forest  and  probably  should 
remain  so.  If  cleared,  it  would  be  suitable  for  carefully 
controlled  grazing  and  perhaps  for  occasional  hay  crops. 
It  is  in  capability  nnit  VIe-3. 

Calvin  channery  loam,  4.5  to  60  percent  slopes  (CcF). — 
This  is  the  steepest  Calvin  channery  loam;  the  areas 
are  in  forest  and  shoidd  remain  so.  They  are  much  too 
steep  for  safe  cultivation,  and  growing  hay  or  pasture 
would  be  hazardous  and  impractical.  The  156  acres  are 
in  caiiability  unit  VIIe-3. 

Calvin  shaly  loam,  0  to  10  percent  slopes,  moderately 
eroded  (CmB2). — The  profile  of  this  Calvin  soil  is  like  the 
one  described  in  detail,  except  that  the  coarse  fragments 
ai'e  almost  entirely  shale,  and  there  ai"e  very  few,  if  any, 
flat  pieces  of  hard,  red  sandstone  in  the  surface  layer. 
There  may  be  some  sandstone  in  the  soil  and  substratum, 
however.  This  soil  occupies  only  189  acres,  but  the  areas 
of  it  are  important  where  they  occur.  Even  on  these 
fairly  gentle  slopes,  there  is  some  erosion  hazard.  The  soil 
is  classified  in  capability  unit  IIIs-2. 

Calvin  shaly  loam,  10  to  20  percent  slopes,  moder- 
ately eroded  (CmC2). — Erosion  has  been  active  on  this  Cal- 
vin soil.  If  the  soil  is  managed  carefully,  some  cultivated 
crops  may  be  safely  grown  in  fairly  long  rotations.  This 
soil  is  in  capability  unit  IVe-32.  There  are  126  acres  in 
the  county. 

Calvin  shaly  loam,  10  to  20  percent  slopes,  severely 
eroded  (CmC3). — On  this  soil,  erosion  luxs  been  so  seveiv 
that  cultivated  crops  should  be  grown  only  occasionally, 
and  the  soil  should  be  in  sod  crops,  such  as  hay  or  jiasture, 
most  of  the  time.  Included  with  this  shaly  soil  are  some 


Id  acres  llial  are  somewhat  cliaiiiiery  in  the  surface  layer. 
All  of  tlie  MS  acres  of  (his  soil  ai-e  in  capabilily  luiit 
\'ie  3. 

Calvin  shaly  loam,  20  to  .30  percent  slopes  (CmD). — 
This  ste(>p  soil  is  not  ei'oded,  because  the  areas  of  it  have 
been  well  i)i-o(ecled  by  foi-ests.  If  it  were  cultivated, 
however,  (he  ei-osion  luizard  would  be  gi-ea(.  The  ]]2 
aci-es  of  this  soil  are  in  capability  unit  Vie-.'}. 

Calvin  shaly  loam,  .30  to  45  percent  slopes  (CmE). — 
Although  Iheri'  has  been  little  oi'  ik)  erosion  on  (his 
soil,  cultivation  should  not  be  attempted.  The  soil  could 
produce  pasture,  and  grazing  or  hay  crops  could  be 
attempted  if  managed  carefully  enough.  There  ai-e  204 
acres,  in  capability  unit  VlIe-3. 

Calvin-Berks  channery  loams,  0  to  10  percent  slopes, 
moderately  eroded  (CnB2). — This  soil  mapping  unit  and 
the  next  four  described  consist  of  mixtui'es  of  the  reddish- 
brown  to  red  Calvin  chaniu'iy  loam  and  the  yelloAvish- 
brown  Berks  channery  loam.  The  areas  of  Calvin  and  of 
Berks  soils  in  these  units  are  distinct  enough,  but  they  are 
so  small  and  intricately  mixed  that  separation  on  the  map 
was  impractical.  The  most  gentle  and  least  ei'oded  slopes 
of  the  complex  are  in  this  soil  unit,  whicli  lias  an  area  of 
1,565  acres  and  is  in  capability  unit  IIs-7. 

Calvin-Berks  channery  loams,  10  to  20  percent  slopes, 
moderately  eroded  (CnC2). — This  mixtui-e  of  Calvin  and 
Berks  soils  occupies  2,798  acres  and  is  in  capability  unit 
IIIe-32. 

Calvin-Berks  channery  loams,  3  to  20  percent  slopes, 
severely  eroded  (CnC3). — In  this  mixture  of  channery 
loams,  there  are  some  small  spots  of  shaly  loams.  The 
soils  have  been  too  severely  eroded  for  cultivation,  except 
in  very  long  rotations  with  especially  good  management 
and  protection.  The  ai-eas  can  be  used  safely  for  hay 
crops  and  pasture  or  for  sodded  orchards.  The  320  acres 
in  the  county  are  in  capability  unit  IVe-32. 

Calvin-Berks  channery  loams,  20  to  30  percent 
slopes,  moderately  eroded  (CnD2). — Most  of  the  areas  of 
this  mapping  unit  have  remained  in  forest,  and,  although 
there  has  been  some  erosion,  it  has  not  been  severe.  Be- 
cause of  the  slope,  the  hazard  of  erosion  would  be  great 
if  cultivation  were  attempted.  Therefore,  the  1,289  acres 
are  in  capability  unit  IVe-32. 

Calvin-Berks  channery  loams,  30  to  60  percent  slopes, 
moderately  eroded  (CnF2). — These  very  steep  soils  occupy 
1,315  acres.  Woodland  would  be  the  safest  use.  The  soils 
are  in  capability  unit  ^TIe-3. 

Calvin-Montevallo  shaly  loams,  0  to  10  percent 
slopes,  moderately  eroded  (CoB2). — This  unit  and  the 
next  four  described  are  intricate  mixtures  of  Calvin  shaly 
loam  and  Montevallo  shaly  loam.  On  these  shaly  and 
dominantly  thin  soils,  erosion  is  l^s  of  a  management 
problem  than  droughtiness  and  low  fertility.  The  103 
acres  of  this  mapping  unit  are  in  capability  unit  IIIs-2. 

Calvin-Montevallo  shaly  loams,  10  to  20  percent 
slopes,  moderately  eroded  (CoC2). — Slopes  of  these  soils 
are  great  enough  that  erosion  is  the  most  significant  man- 
agement problem.  The  soils  are  also  thin  and  droughty. 
There  are  178  acres  in  capability  unit  IVe-32. 

Calvin-Montevallo  shaly  loams,  20  to  30  percent 
slopes,  moderately  eroded  (CoD2). — Because  of  the  slope 
and  the  great  hazard  of  erosion,  cultivation  of  this 
mapping  unit  is  hazardous.  Some  grazing  can  be  done 


20 


SOIL  SUHVEY  SERIES    1959,   NO.  17 


if  it  is  caivfully  inaniiat'd  and  coiil  rolled.  Tlio  H').')  acres 
are  in  cajjahilil y  iiiiil  •">. 

Caivin-Montevallo  shaly  loams,  20  to  45  percent 
slopes,  severely  eroded  (CoE3). — Little  surface  soil  is  left 
on  these  stt'ej),  severely  eroded  areas,  and  there  are  many 
^•allies.  In  some  places  almost  all  the  soil  has  been  iv- 
iiioved  by  erosion.  These  areas  ai'e  of  little  value  in  a<i-i-i- 
culture,  except  for  reforestation.  'Die  i;)4  acres  aic  in 
capability  unit  VJIe-;'). 

Calvin-Montevallo  shaly  loams,  30  to  (iO  percent 
slopes  (CoF). — Tliese  are  steep  areas  that  ha\e  not  been 
eioded.  because  they  remained  almost  entirely  in  forest. 
They  are  too  steep  for  cultivation  or  for  practical  <ri'a/>in<>- 
and  should  remain  in  forest.  There  are  255  acres,  in 
capability  unit  \'Ile-;5. 

Chandler  Series 

Till"  Chandler  series  consists  of  moderately  deep,  \v(dl- 
drained  to  somewhat  excessively  drained  soils  that  have 
a  weakly  de\elopt'd  horizon.  The  (Chandler  soils  de- 
veloped in  materials  that  weathered  from  |)hyHite,  a 
fine-iii'ained,  metamorphosed  schist  containin<:-  consider- 
able mica.  These  soils  are  on  fairly  steep  uplands  and 
low  mountains  in  the  southern  part  of  the  county.  They 
are  mostly  in  the  area  just  north  of  Harpers  Feri-y. 

The  (Miandler  soils  are  commoidy  associated  with  the 
Hazel  soils,  which  are  even  shallower  to  bedi-ock.  They 
occnpy  less  than  1,000  acres. 

A  ii'ood  part  of  the  acreage  has  been  cleared  and  is  used 
for  <ienei"al  farmin<:'  and  foi-  orchards.  These  soils  are 
extremely  subject  to  ei'osion  and  nuist  be  very  cand'ully 
managed. 

I'rotile  of  Chandler  chaiuiery  silt  loam,  ()  to  10  percent 
slopes,  in  a  foi'ested  area  two-tenths  of  a  mile  west  of 
Harpers  Ferry  Road,  about  three-tenths  of  a  mile 
south  of  its  intersection  with  Tlotfnuister  Koad : 

An  0  to  1  inch:  very  dark  grayisli-browii  (lOYR  3/2)  chun- 
nery  silt  loam;  moderate,  fine,  cniiiib  structure:  soft 
when  diy,  very  friable  when  moist,  slightly  i)lastic 
and  slightly  sticky  when  wet;  roots  abundant;  about 
10  percent  phyllite  fragments:  neutral;  clear,  smooth 
boundary;  horizon  is  '2  to  1  inch  thick. 

A12  1  to  3  inches:  yellowish-brown  (lOYR  5/4)  channery  silt 
loam;  moderate,  medium,  crumb  structure:  moder- 
ately hard  when  dry,  friable  when  moist,  and  slightly 
plastic  and  slightly  sticky  when  wet;  roots  plentiful; 
many  fine  and  medium  pores:  about  25  percent  stone 
fragments:  slightly  acid:  clear,  wavy  boundary;  hori- 
zon is  1  to  3  inches  thick. 

A3  3  to  9  inches:  brownish-yellow  (lOYR  6/6),  channery, 
heavy  silt  loam  or  light  silty  clay  loam:  weak, 
medium,  subangular  blocky  structure;  moderately 
hard  to  hard  when  dry,  moderately  firm  when  moist, 
and  plastic  and  sticky  when  wet;  roots  rather  plenti- 
ful; many  fine  and  some  medium  and  larger  pores; 
about  20  ])ercent  stone  fragments;  very  strongly  acid; 
clear,  irregular  boundarv;  horizon  is  5  to  10  inches 
thick. 

Ci  9  to  24  inches:  brownish-yellow  (lOYR  6/6)  very  chan- 
nery silt  loam:  inherited  laminar  structure;  moder- 
ately hard  when  dry,  firm  when  moist,  and  moderately 
plastic  and  sticky  when  wet;  few  roots;  many  fine 
and  medium  and  some  large  pores;  60  to  70  percent 
stone  fragments  of  all  sizes,  mostly  well  disintegrated; 
very  strongly  acid:  gradual,  irregular  boundary;  hori- 
zon is  12  to  20  inches  thick. 

C2  24  to  48  inches  +  :  yellow  (lOYR  7/6)  mass  of  partially 
decomposed  fragments  of  phyllite;  hard  when  dry, 


\  cry  firm  and  coin])acl  when  moist,  and  slightly  plas- 
tic and  slightly  sticky  when  W(>t ;  a  few  large;  tree 
roots;  rather  slowly  i)erineable;  about  S5  to  95  ])er- 
cent  stone  fragments,  the  remainder  fine  materiiU 
with  abundant  mica  flakes;  extremely  acid;  verj' 
thick,  grading  with  depth  to  hard,  gray,  greenish- 
gray,  and  yellowish-gray  phyllite. 

There  is  considerable  range  in  dej)th  to  parent  material. 
In  some  spots  the  subsoil  has  a  reddish  cast  but  is  other- 
\\  ise  like  that  of  the  soil  described.  There  are  occasional 
stones,  flagstones,  or  large  slabs  of  phyllite  on  and  within 
the  soil.  Some  areas  are  almost  free  from  stone  fragments 
in  the  surface  layer,  thus  are  silt  loam  rather  than  chan- 
nei'v  silt  loam  in  texture.  These  areas  are  not  shown 
separately  on  the  soil  maj),  so  all  of  the  Chandler  soils 
are  imditferentiated  nnits  of  Chandler  silt  loam  and 
channery  silt  loam. 

Chandler  silt  loam  and  channery  silt  loam,  0  to  10 
percent  slopes  (CrB). — This  is  the  soil  described  above, 
except  that  in  some  areas  there  are  very  few,  if  any,  ])ieces 
of  phyllite  in  the  surface  layei'.  This  miit  includes  only 
gently  sloj)ing  soils  that  ha\e  had  little,  if  any,  erosion, 
and  they  can  be  cidtivated  safely  with  good  management,. 
Tlic  No  acres  are  in  ca])abilily  unit  He  ill. 

Chandler  silt  loam  and  channery  silt  loam,  3  to  10 
percent  slopes,  moderately  eroded  (CrB2). — Erosion  has 
been  acti\-e  on  the  areas  of  this  mapping  unit.  Better 
management  and  longer  rotations  are  re(iuired  for  safe 
cidtivation  than  on  the  similar  mieioded  soil.  The  360 
acres  are  in  ca])ability  tniit  He-lo. 

Chandler  silt  loam  and  channery  silt  loam,  10  to  20 
percent  slopes,  moderately  eroded  (CrC2). — These  slop- 
ing soils  are  subject  to  erosion.  Hotations  must  be  long 
for  safe  cidtivation,  with  oidy  infre(]uent  row  cro])s  in 
the  cropping  system  and  with  long  periods  of  sod  croj)S, 
such  as  hay,  ])asture,  or  sodded  orchards.  The  342  acres 
of  this  mapping  luiit  aiv  in  ca])ability  imit  IVe-10. 

Chandler  silt  loam  and  channery  silt  loam,  20  to  30 
percent  slopes  (CrD). — iiecause  these  soils  have  remained 
in  forest  cover,  they  have  not  been  eroded.  It  would  be 
best  to  keep  them  in  forest,  although  they  could  be  grazed 
with  care  after  establishment  of  a  good  sod.  The  07  acres 
are  in  capability  unit  VIe-3. 

Chewacla  Series 

The  Chewacla  series  consists  of  modertitely  well  drained 
soils  on  recent  alluvial  deposits  along  some  of  the  smaller 
streams.  The  soils  consist  of  materials  that  were  washed 
originally  from  areas  of  soils  developed  from  crystalline 
rocks — in  Washington  County  mainly  from  soils  of  the 
Myersville,  Fauquier,  Highfield,  Chandler,  and  Hazel 
series. 

Because  the  Chewacla  soils  consist  of  recently  deposited 
materials,  there  has  not  been  sufficient  time  for  the  de- 
A'elopment  of  a  B  horizon  in  tliem.  They  are  on  the  same 
flood  plains  as  the  well-drained  Congaree  soils  and  the 
poorly  drained  Wehadkee  soils. 

]Most  areas  of  Chewacla  soils  are  small,  and  many  of 
them  have  not  been  cleared.  When  cleared,  they  are 
used  mostly  for  pasture  and  hay  crops,  Init  corn  and  other 
general  crops  are  sometimes  grown. 


WASI  TON    COIIXTV,  MAHVLAM) 


21 


Prolilc  of  ( "licw  ;icl;i  sill  loam,  in  a  pasdircd  area  on 
the  Mood  plain  of  a  small  creek  1  mile  iiorlli  of  Darjiaii. 
just  oil'  the  Ilai  pei-s  Kerry  Koad  : 

A|,    0  t(i  S  iiu'lu's:  (lark  grayish-brown  (2.5Y  4/2)  silt  loam; 

weak,  iiiediimi,  cruiiil)  structure;  moderately  hard 
when  dry,  friable  when  moist,  and  sligiitly  plastic  and 
slightly  sticky  when  wet;  roots  aijundani;  strongly 
acid;  clear,  smooth  boundarv;  horizon  is  (1  to  8  inches 
thick. 

C      8  to  33  inches:  light  oli\-e-brown  (2.5Y  5/4)  silt  loam; 

al)out  15  percent  very  small  specks  of  gray;  moderate, 
medium,  crumb  structure;  moderately  hard  when  dry, 
somewhat  firm  when  moist,  and  moderately  plastics 
and  sticky  when  wet;  roots  ])lentiful  in  upper  portion, 
fewer  below;  many  fine  and  medium  |)ores;  very 
strongly  acid;  abrui)t,  smooth  to  wavy  boiuidary; 
horizon  is  20  to  30  inclies  thick. 

Dk  33  to  42  inches  |  :  ])ale-olive  (5Y  0  4)  gnuclly  sandy 
loam;  about  30  j)ercent  medium,  distinct  mottles  of 
brown,  yellow,  and  gray;  moderate,  medium,  i)laty 
structure;  hard  when  dry,  moderately  firm  when 
moist,  and  slightly  plastic  and  slightly  sticky  when 
wet;  no  roots;  moderately  slowly  permeable  to  slowly 
permeable;  aljout  20  jjcrcent  waterworn  gravel;  ex- 
tremely acid;  grades  with  depth  to  gravelly  sandy 
material. 

The  text  lire  of  the  surface  layer  ranges  from  sandy  loam 
to  silt  loam  in  the  series,  and  there  are  gravelly  and 
stony  phases.  Some  areas  are  somewhat  more  brown 
than  the  profile  described,  especially  where  the  soil  mate- 
rials originated  in  areas  of  reddish  soils,  such  as  the 
Fauqnier.  The  Chewacia  soils  are  not  too  poorly  drained 
for  many  crops,  but  they  are  limited  in  crop  production 
by  the  tendency  to  be  flooded.  The  water  table  will  vary, 
and  in  wet  seasons  it  is  likely  to  be  near  the  surface  for 
considei'al)le  jieriods. 

Chewacia  gravelly  sandy  loam  (Cs). — This  soil  is  like 
the  one  described,  except  that  the  surface  layer  is  sandier 
and  there  is  consideral)le  waterworn  gravel  throughout. 
The  soil  is  used  mostly  for  late  corn  or  for  pasture  and  hay. 
It  is  in  capability  unit  IIw-7,  but,  if  very  frequently 
damaged  by  flooding,  it  shoidd  be  managed  for  grazing  or 
perennial  sod  crops.  The  soil  occu])ies  20G  acres. 

Chewacia  silt  loam  (Ct). — This  soil  has  the  profile  that 
has  been  described.  It  occupies  nearly  level  flood  plains. 
It  is  in  capability  unit  IIw-7,  but  should  be  managed 
for  sod  crops  and  grazing  if  damaged  by  frequent  over- 
flows. Only  an  examination  of  eacli  area  of  these  soils 
and  a  consideration  of  their  known  liistoi  v  can  deteriuine 
whether  or  imt  there  is  frequent  overflow  damage.  This 
information  cannot  be  shown  on  the  soil  maps.  There 
are  oil  acres  of  this  soil. 

Chewacia  stony  silt  loam  (Cu). — This  soil  is  on  nai  row 
flood  plains,  mostly  along  the  western  slopes  of  South 
Mountain  between  Pen  ^lar  and  Pondsville.  It  consists 
largely  of  local  alluvium  Avashed  down  from  adjacent 
slopes  that  are  generally  occupied  by  stony  Highfield  or 
Fauquier  soils.  Stones  and,  in  some  places,  boulders  are 
so  conunon  that  no  attempt  to  farm  this  soil  has  been 
made.  Included  in  these  flood  ])lains  are  small  areas 
somewhat  better  drained  than  normal,  and  also  some  wet 
spots.  The  157  acres  of  this  soil  are  in  capability  unit  Vs-2. 

Congaree  Series 

The  Congaree  series  consists  of  deep,  well-drained  soils 
on  recent  alluvium  of  the  flood  plains.  These  deposits  con- 
sist of  out  wash  from  ai-eas  of  soils  on  crystalline  rocks. 


I'lie  (Ongaree  soils  are  mostly  in  I  lie  soutlieni  pari  of 
I  he  coiiniy  near  Harpers  Fei'i-y.  On  the  same  flood  plains 
aic  the  modei'ately  well  drained  ('liewacja  soils  and  I  lie 
pooily  drained  ^^'l'Iladkee  soils. 

The  Congaree  soils  are  of  very  little  e.xteiil  or  iiii- 
porlaiice  in  W'ashiiigloii  Counly.  .Mlliongh  they  are  good 
soils,  they  occupy  very  small  and  narrow  areas,  and 
amount  to  less  than  100  acres.  l>otli  the  silt  loam  and  the 
gravelly  loam  occur,  but,  because;  of  their  ncit  small 
extent,  they  are  mapped  togclhcr  as  ( 'oiigaree  sill  loam 
and  gravell,y  loam. 

Profile  of  Congaree  sill  loam,  in  a  foresied  area  just  off 
Shinan  Koad,  IVi  niiles  nort liw est  of  its  >ont  h  intersect  ion 
with  Harpers  Ferry  Koad: 

A|  0  to  5  inches:  dark-brown  (lOYIl  4/3)  silt  loam;  weak,  fine 
to  medium,  crumb  structure;  slightly  to  moderately 
hard  when  dry,  friable  when  moist,  and  slightly  pla.stic 
and  slightly  sticky  when  wet;  roots  abundant;  slightly 
acid  to  neutral;  gradual,  smooth  boundary;  horizon 
is  4  to  7  inches  thick. 

C  5  to  39  inches:  dark  yellowisii-i)r(jwn  (lOYR  4'4)  silt  loam 
or  heavy  fine  sandy  loam;  no  apparent  structure; 
slightly  hard  when  dry,  friable  to  very  friable  when 
moist,  and  moderately  plastic  but  iionsticky  when  wet; 
roots  plentiful  in  uj)per  portion;  moderately  per- 
meable; contains  a  few  mica  flakes;  slightly  acid; 
clear  to  abrupt,  smooth  tjoundary;  horizon  is  30  to 
40  inches  tliiek. 

D  39  to  48  inches  +:  yellowish-brown  (lOYR  5/4) ,  stratified 
sand,  silt,  and  gravel;  no  structure;  consistence  var- 
iable; no  roots;  many  mica  flakes;  strongly  acid. 

Some  profiles  of  Congaree  soils  are  a  little  more  reddish, 
particularly  in  the  upper  C  horizon,  than  the  one  de- 
scribed. Gravel  may  be  present  throughout  the  profile. 
These  soils  are  well  drained  and  of  fairly  high  fertility 
and  moisture-supplying  capacity.  However,  many  areas 
in  Washington  County  are  so  small  that  they  have  not 
been  cleared  for  use. 

Congaree  silt  loam  and  gravelly  loam  (Cv). — The  Con- 
garee soils  are  in  capability  unit  I-().  These  soils  are 
suitable  for  nearly  all  crops.  They  do  have  a  hazard  of 
flooding,  but  are  flooded  very  infref[uently,  and  corn 
and  other  crops  can  be  planted  after  the  danger  of  flood- 
ing has  passed.  There  are  only  86  acres  of  these  soils 
in  the  county. 

Corydon  Series 

Tlie  Corydcm  series  consists  of  shallow  soils  developed 
from  limestone  of  various  degrees  of  i)urity  in  the  Great 
Valley  of  Washington  County.  The  Coi-ydon  soils  gen- 
erally are  on  long  ridges  somewhat  above  most  of  the 
valley.  They  are  young  soils,  shallow  to  bedrock,  and 
many  areas  are  rocky  to  extremely  rocky  because  of  the 
many  outcrops  of  limestone. 

Corydon  soils  diifer  from  the  Hagerstown  soils  of  the 
same  valley.  They  are  much  less  red  than  the  Hagerstown 
soils,  have  a  nutch  more  weakly  developed  profile,  and 
are  invariably  shallow  to  bedrock.  The  Hagerstown  soils 
are  normally  deep. 

The  Corydon  soils  are  itsed  extensively  for  pasture. 
Where  there  are  few  or  no  outcrops  of  limestone,  they 
are  sometimes  used  for  general  cro})S.  but  they  tend  to 
be  droughty  because  of  their  shallow  depth  over  the  rock. 


22 


SOIL   SUK\'EY   SERIES    19  5  9,   NO.  17 


Pi'olilc  ol"  CorvdoH  clay  loniu,  0  lo  l)  ptTcont  sloj)es, 
in  an  area  of  cntover  forest  about  200  ysirds  west  of 
Fairview  Church  Koad,  three-tenths  of  a  mile  south  of 
the  Pennsylvania  State  line: 

Ai  0  to  4  inches:  dark-brown  (7. SYR  3/2)  clay  loam  or  heavy 
silty  clay  loam;  moderate,  medium,  crumb  structure; 
moderately  hard  to  hard  when  dry,  friable  to  some- 
what firm  when  moist,  and  moderately  plastic  and 
sticky  wiien  wet;  roots  abundant;  slightly  acid;  clear 
to  abrupt,  smooth  to  wavy  boundary;  horizon  is  1 
to  4  incln^s  thick. 

B2  4  to  13  inches:  strong-brown  (7. SYR  5/8)  clay  loam,  very 
slightly  variegated  or  variable  in  color;  moderate, 
medium  to  strong,  blocky  structure;  very  hard  when 
dry,  firm  when  moist,  and  [)lastic  and  sticky  when 
wet;  roots  rather  plentiful;  many  fine  but  few  large 
I)ores;  slightly  acid;  abru()t,  wavy  to  irregular  bound- 
ary; horizon  is  2  to  12  inches  thick. 
•C  13  to  14  inches:  variegated  reddish  and  yellowish  to  lUmost 
white,  structureless  gritty  clay;  very  hard  when  dry, 
firm  when  moist,  and  plastic  and  sticky  when  wet; 
mildly  alkaline;  abrupt,  irregular  to  l)roken  boundary; 
horizon  is  1  to  3  inches  thick. 

Dr  14  inches  +:  hard,  dark-gray  limestone  containing  many 
fine  ([uartz  im])urities. 

Tliere  is  rather  great  variability  in  the  (yorydon  soils. 
Colors  ranoe  from  yellowish  throuah  hi'owii  to  almost 
red,  and  depth  ranges  from  practically  none  to  as  muc-h 
as  20  inches  or  more.  Either  the  A,  H,  or  C  horizon  may 
be  absent  in  places,  especially  the  C  horizon,  where  the 
subsoil  rests  abruptly  on  bedrock.  The  limestone  bedrock 
may  be  fairly  pure  or  may  contain  consideral)le  chert  or, 
in  places,  shale. 

The  Corydon  soils  are  well  drained,  and  the  very 
shallow  areas  are  excessively  drained.  They  tend  to  be 
droughty,  and  have  a  low  or  very  low  moisture-suppl3'ing 
capacity.  Tliey  are  fertile  enough  and  would  be  i)roductive 
if  moisture  deficiences  could  be  corrected. 

Corydon  clay  loam,  0  to  3  percent  slopes  (CwA). — 
This  is  the  best  soil  of  the  Corydon  series  in  the  county. 
It  has  the  prolile  described.  There  are  few  outcrops  of 
limestone.  Tlie  clay  loam  surface  soil  tends  to  be  rather 
hard  and  intractible  when  only  sliglitly  too  dry,  and  sticky 
and  plastic  and  tends  to  form  clods  if  it  is  i)lowed 
when  slightly  too  wet.  Even  at  optimum  moisture  content, 
the  soil  is  difficult  to  plow  and  cultivate.  The  309  acres 
of  this  soil  are  classified  in  capability  unit  IIIs-2. 

Corydon  clay  loam,  3  to  8  percent  slopes,  moderately 
eroded  (CwB2). — The  slope  of  this  clayey  soil  is  great 
enough  that  runoff  is  fairly  rapid.  The  resuUing  erosion 
hazard  is  probably  of  more  significance  than  the  difficulty 
of  handling,  although  that  problem  is  also  an  important 
one.  The  1,000  acres  of  this  soil  are  in  capability  unit 
IIIe-30. 

Corydon  clay  loam,  8  to  15  percent  slopes,  moder- 
ately eroded  (CwC2). — This  soil  tends  to  be  shallower  than 
the  more  gently  slo2)ing  Corydon  soils.  There  is  greater 
danger  of  erosion,  and  there  may  be  more  outcrops  of 
rock.  With  very  good  management,  crops  can  be  grown, 
although  most  of  this  soil  is  used  for  pasture.  The  200 
acres  are  in  capability  unit  IVe-1. 

Corydon  extremely  rocky  clay  loam,  0  to  15  percent 
slopes  (CxC). — This  soil  has  a  profile  like  the  one  described 
in  detail,  but  there  are  extremely  numerous  outcrops  of 
limestone.  These  outcrops  and  extremely  shallow  areas 
occupy  as  much  as  90  percent  of  the  surface  in  many 
places.  Tillage  of  any  kind  is  out  of  the  question,  and  the 


surface  is  too  rocky  for  mowing,  except  by  hand.  Best 
uses  of  this  soil  would  be  for  woodlots  or  for  very  limited 
grazing.  The  405  acres  are  in  capability  unit  Vlls-l. 

Corydon  very  rocky  clay  loam,  3  to  45  percent  slopes, 
moderately  eroded  (CyE2). — This  soil  has  a  pi'olile  like 
the  Corydon  clay  loam  described,  but  it  has  many  outcrops 
of  limestone  and  areas  of  thin  soil  over  bedrock.  It  is  not 
nearly  so  rocky,  however,  as  (he  Corydon  extremely  rocky 
clay  loam ;  in  most  places  between  25  to  40  percent  of  the 
surface  is  affected  by  rock.  Erosion  has  been  active  in 
many  places.  Tillage  is  not  imj)ossible,  but,  because  of  the 
rocks,  steep  sloi)e,  aiul  erosion  hazard,  it  is  generally  im- 
practical. The  soil  is  best  suited  to  pasture  or  woodland 
and  is  in  capability  unit  VIs-1.  There  are  857  acres. 

Dekalb  Series 

The  Dekalb  series  consists  of  excessively  drained,  ex- 
tremely acid,  shallow,  stony  soils  on  light-colored,  quartz- 
it  ic  .sandstone  in  high  pai'ts  of  the  county. 

Profile  of  Dekalb  very  stony  saiuly  loam.  0  to  25  per- 
cent slopes,  in  a  forested  ai'ea  near  the  sununit  of  Sideling 
Hill,  on  Eiser  Road  three-tenths  of  a  mile  south  of  its 
intersection  with  U.S.  Highway  No.  40: 

Ai     0  to  1/2  inch:  black  (lOYR  2/1)  very  stony  sandy  loam; 

weak,  fine,  granular  structure;  soft  when  dry,  very 
friable  when  moist,  and  nonijlastic  and  nonsticky 
when  wet;  roots  plentiful;  very  strongly  acid;  abrupt, 
wavy  boundary;  horizon  is  0  to  1  incli  thick. 

A2     1/2  to  1  inch:  dark-gray  (SY  4/1)  very  stony  sandy  loam; 

single-grain  structure;  very  low  density  with  ashy 
appearance;  soft  and  floury  when  dry,  loose  when 
moist,  and  noii])lastic  and  nonsticky  when  wet;  roots 
plentiful;  very  rapidly  permeable;  extremely  acid; 
abrupt,  wavy  boundary;  liorizon  is  0  to  1  inch  thick. 

B  1  to  15  inches:  yellow  (lOYR  7/6)  very  stony  and  very 
channery  sandy  loam;  very  weak,  medium  crumb  to 
granular  structure;  soft  to  very  slightly  hard  when 
dry,  loose  to  very  h'iable  when  moist,  and  nonplastic 
and  nonsticky  when  wet;  a  few  large,  woody  roots; 
very  rapidly  permeable;  50  to  70  percent  stones  and 
flagstones  of  c(uartzitic  sandstone;  extremely  acid; 
gradual,  irregular  boundarv;  horizon  is  10  to  20  inches 
thick. 

C  15  to  43  inches:  brownish-yellow  (lOYR  6/6),  extremely 
channery  and  stony  loamy  sand  or  gritty  sandy  loam; 
no  structure;  loose  when  dry  or  moist,  and  nonplastic 
and  nonsticky  when  wet;  a  very  few  woody  roots; 
very  rapidly  to  extremely  permeable;  ranges  from 
about  70  percent  rock  fragments  in  upper  part  to 
almost  solid  rock  at  43  inches;  extremely  acid;  grad- 
ual to  abrupt,  irregular  to  broken  boimdarv;  horizon 
is  2  to  6  feet  thick. 

Dr  43  inches  -|- :  very  hard,  light-colored,  quartzitic  sand- 
stone. 

Either  of  the  surface  layers  may  be  ab.sent,  more  often 
the  Aj  horizon.  Both  are  absent  in  cultivated  or  eroded 
areas.  In  places  there  is  a  very  thin,  dark-brown,  stained 
layer  at  the  upper  boundary  of  the  B  horizon.  This  is 
a  distinct  soil  horizon,  but,  when  present,  it  is  seldom 
as  nmch  as  one-fourth  inch  thick. 

Dekalb  and  Leetonia  very  stony  sandy  loams,  0  to  25 
percent  slopes  (DeD). — This  mapping  unit  consists  of  both 
Dekalb  and  Leetonia  very  stonj'  sandy  loams.  These  soils 
are  not  suited  to  crops  or  pasture.  Most  of  the  areas  are 
in  forest,  and  foi-estry  is  probably  their  most  economic 
use.  There  are  1,762  acres,  in  capability  unit  VIIs-2. 

Dekalb  and  Leetonia  very  stony  sandy  loams,  25  to 
45  percent  slopes  (DeE). — On  these  steep  soils  the  manage- 


"WASIIIN'GTOX    rorXTV.  MAini.AM) 


23 


ment  ol'  i  hhIht  is  diHicull.  However,  there  is  little  other 
opportunity  for  fcoiioinic  ivtiii'ii.  TIumv  niv  KOaG  acres, 
ill  capahilit y  unit  VIIs--J. 

Dekalb  and  Leetonia  very  stony  sandy  loams,  45  to 
60  percent  slopes  (DeF). — Tht'sc  sti-cp  slopes  arc  so  i'ou<ili 
and  inaccessible  that  they  are  almost  ini))ossil)le  to  man- 
age as  liml)erlan(l.  They  remain  in  forest,  how- 
ever, for  watershed  protection  and  wildlife  cover.  They 
sliould  he  useful  foi-  i>ark  and  i-ecreational  ))Ui-poses.  The 
201  acres  aiv  in  canability  unit  VIIs-2. 

Dekalb  and  Lenew  very  stony  loams,  0  to  25  percent 
slopes  (DkD). — This  unit  consists  cliielly  of  vei-y  stony 
loams  of  tlie  Dekalb  and  the  Lelunv  series.  The  Dekalb 
soil  of  tliis  unit  has  a  prolile  like  the  one  described  in 
detail,  except  that  it  is  somewhat  finer  textured  throntrli- 
out.  The  jirofile  of  the  Lehew  soil  is  like  the  one  de- 
scribed for  the  Lehew  series.  Included  also  are  some  small 
areas  in  wliich  the  stones  are  remnants  of  hard,  cherty 
limestone.  These  soils  are  much  too  stony  for  cultivation, 
and  a'ra/.iiia'  would  be  ))oor.  liazardous,  and  impractical. 
Woodhind  is  the  most  suitable  and  economic  use.  The  281 
acres  aic  in  capability  unit  VlIs-2. 

Dekalb  and  Lehew  very  stony  loams,  25  to  45  percent 
slopes  (DkE). — These  are  steep  soils.  iVlthough  they  are 
in  capability  unit  VIIs-2,  their  steepness  and  roughness 
limit  harvesting  of  the  trees  that  will  grow,  so  the  soils 
are  less  useful  than  those  that  are  not  so  steep.  There 
are  493  acres,  of  which  about  76  acres  have  a  slope  steeper 
than  45  percent,  and  about  11  acres  contain  some  outcrops 
of  limestone. 

Duflfield  Series 

The  Duffield  series  consists  of  deep,  well-drained  soils 
in  many  parts  of  the  limestone  valleys  on  limestone  inter- 
bedded  with  thin  seams  of  shale.  The  Duffield  soils  have 
a  profile  similar  to  that  of  the  Hagerstown  soils,  but  they 
are  dominantly  yellowish  instead  of  reddish  and  the  sub- 
soil is  not  quite  so  fine  textured.  The  Duffield  soils  are 
also  similar  to  the  Frankstown  soils,  but  they  are  deeper, 
on  the  average,  and  their  parent  material  contains  less 
shale  and  chert. 

The  Duffield  soils  are  most  extensive  in  the  central 
and  eastern  parts  of  the  Great  Limestone  Valley.  They 
are  excellent  agricultural  soils  and,  next  to  the  Hagers- 
town, they  are  the  most  extensive  soils  in  the  county.  The 
Duffield  soils  are  fertile  and  highly  productive  under  good 
management.  They  are  limited  in  use  only  by  the  hazard 
of  erosion  and,  in  some  places,  by  stones  or  rock  outcrops. 

Profile  of  Duffield  silt  loam,  0  to  3  percent  slopes,  in  a 
cultivated  area  just  south  of  U.S.  Highway  No.  40,  two- 
tenths  of  a  mile  northwest  of  its  intersection  with  Cool 
Hollow  Road: 

Ap    0  to  8  inches:  yellowish-brown  (lOYR  5/4)  silt  loam; 

nioflorato,  fine,  crumb  structure;  slightly  to  moder- 
alcly  hard  when  dry,  friable  when  moist,  and  moder- 
ately i)lastic  and  moderately  sticky  when  wet;  roots 
abundant;  slightly  acid  to  neutral;  clear,  smooth 
boundary;  horizon  is  6  to  8  inches  thick. 

Bji  8  to  14  inches:  brownish-yellow  (lOYR  6/6),  light  silty 
clay  loam;  moderate,  fine,  suVjangular  blocky  struc- 
ture; moderately  hard  when  dry,  friable  to  slightly 
firm  when  moist,  and  moderately  plastic  and  moder- 
ately sticky  when  wet;  roots  plentiful;  many  fine  and 
medium  pores;  upper  surface  apparently  a  plowsole. 


being  Hoiiiewhat  (;oini)uct((l ;  incfliiim  acid;  gradual, 
wavv  bouiidurv;  horizon  \h  4  to  7  inches  thick. 
I  I  to  28  inciics:  fcddisii-yellow  (7.  SYR  <)/6j  silty  cluy 
loam;  strong,  medium,  blocky  and  Niibangiilar  blocky 
structure;  iiard  to  v(!ry  hard  wIkmi  dry,  firm  wlieii 
moist,  and  plastic  and  sticky  when  wet;  roots  plenti- 
ful in  upper  portion;  al)iindant  fine;  and  some  iiie'iiuMi 
pores;  patciiy,  self-colrtred  clay  skins  and  some  scat 
tered,  black  films  on  aggregates;  slightly  acid;  grad- 
ual, wavy  boundary;  horizon  is  12  to  20  inches  thick. 

B23  28  to  48  inches:  variegated  reddish-yellow  (7.5YR  6/6  and 
7/8)  silty  clay  hjani;  strong,  medium  to  coarse,  blocky 
structure;  very  hard  when  dry,  firm  wh(!n  moist, 
and  plastic  and  sticky  when  wet;  practically  no  roots; 
mofierately  slowly  permeable;  stnjiig  but  fiiscontin- 
uous,  self-colored  clay  skins  and  abundant  black  films 
on  aggregates;  neutral;  gradual,  wavy  boundary; 
horizon  is  12  to  24  inches  thick. 

C  48  to  60  inches  +  :  speckled,  streaked,  and  variegated 
strong-brown,  reddish-yellow,  pale-yellow,  and  black 
silty  clay  loam  containing  about  50  percent  partially 
decomposed  hard  shale;  weak,  coarse,  irregular, 
blocky  to  slightly  laminar  structure;  hard  when  dry, 
very  firm  when  moist,  and  plastic  and  very  sticky 
when  wet;  no  roots;  neutral. 

The  thickness  of  the  soil  is  variable,  l)ut  all  Duffield  soils 
are  normally  deep.  Dei)th  to  the  substratum  ranges  from 
about  3()  to  as  much  as  GO  inches.  In  places  a  few  frag- 
ments of  shale  are  in  the  profile.  There  may  be  occasional 
outcrops  of  shaly  limestone,  and  some  areas  are  very 
rocky  to  extremely  rocky  because  of  outcropping  ledires. 
Nearly  all  crops  are  grown  on  the  Duffield  soils,  including 
much  hay  and  pasture.  Only  small  areas  are  in  orchard, 
however,  probably  because  air  drainage  is  not  good  enough 
in  most  valley  positions. 

Duffield  extremely  rocky  silt  loam,  0  to  15  percent 
slopes  (DuC). — This  .soil  is  like  the  silt  loam  described  ex- 
cept that  from  about  40  to  nearly  90  percent  of  the 
surface  is  occupied  by  outcrops  of  shaly  limestone.  Slopes 
are  not  great  and  erosion  has  not  been  especially  active, 
but  the  soil  is  much  too  rocky  for  cultivation  or  for  good 
pasture  management.  This  soil  will  furnish  some  very 
limited  grazing,  and  it  makes  excellent  woodlots.  There 
are  1.279  acres,  in  cai)ability  unit  VIIs-1. 

Duffield  silt  loam,  0  to  3  percent  slopes  (DmA). — This 
soil  has  the  profile  that  is  described  as  representative  of 
the  series.  It  is  the  best  Duffield  soil,  suited  to  all  crops, 
highly  productive,  and  not  subject  to  deterioration  under 
ordinary  good  farming  practices.  The  3,352  acres  are 
in  capability  unit  I-l. 

Duffield  silt  loam,  3  to  8  percent  slopes,  moderately 
eroded  (DmB2). — These  moderate  slopes  of  Duffield  silt 
loam  have  had  some  soil  removed  hy  erosion,  but  the  soil  is 
still  an  excellent  one  and  is  highly  productive  under  good 
management.  This  soil  occupies  16,338  acres.  It  is  in 
capability  unit  IIe-1.  About  32  scattered  acres  have  been 
sevei'ely  eroded. 

Duffield  silt  loam,  8  to  15  percent  slopes,  moderately 
eroded  (DmC2). — This  soil  is  suited  to  all  the  crops  of  the 
area,  but  it  should  have  longer  rotations  and  more  careful 
erosion-control  measures  than  the  similar  but  more  gently 
sloping  soil.  The  4.739  acres  are  in  capability  unit  IIIe-1. 

Duffield  silt  loam,  8  to  25  percent  slopes,  severely 
eroded  (DmD3). — On  this  soil,  erosion  has  been  so  dam- 
ajrinfr  that  creat  care  must  be  used  if  the  soil  is  to  con- 
tinue  to  produce  any  clean-cultivated  crops.  Long  rota- 
tions are  in  order,  so  that  the  soil  is  under  sod  most  of 
the  time.  The  99  acres  are  in  capability  unit  IVe-1. 


24 


SOIL   SURVEY  SERIES    19  59,  NO.  17 


Duffield  silt  loam,  15  to  25  percent  slopes,  moder- 
ately eroded  (DmD2). — Tliis  soil  is  fairly  stt'cp,  hut  t'i'osiou 
has  not  been  especially  active.  Tjont?  rotations,  with  sod 
crops  at  least  4  out  of  5  yeai'S,  will  lielp  protect  the  soil 
against  further  damage.  There  are  G69  acres,  in  capabil- 
ity unit  lVe-1. 

Duffield  very  rocky  silt  loam,  li  to  15  percent  slopes 
(DvC). — This  soil  is  vei-y  much  like  the  othei's  of  the  series 
that  haA'e  a  similar  range  of  slope,  except  that  from  about 
12;")  to  10  percent  of  tlie  surface  is  occupied  by  limestone 
outcrops.  In  some  places  between  outcrops,  the  soil  is 
shallow  or  very  shallow  over  ledges  of  limestone.  The 
soil  is  too  rocky  foi-  regular  cultivation.  Tt  is  e.xcellent 
for  permanent  pasture  or  for  woodland,  l>ul.  it'  pastures 
are  overgrazed,  tlie  soil  will  be  sul)ject  to  some  deteriora- 
tion. There  are  1,<S!).5  acres,  in  ca])al)ility  unit  A^Is-1. 

Duffield  very  rocky  silt  loam,  8  to  45  percent  slopes, 
moderately  eroded  (DvE2). — This  soil  is  also  \  ery  locky : 
the  slope  of  sonu>  areas  is  steep,  and  ei'osion  has  been 
active.  Tf  used  I'oi-  well-managed  improved  pasture  or  for 
woodlaiul,  rui-th(M'  erosion  can  be  pi'actically  eliiuinalcd. 
The  17S  acres  ai'c  in  capahilily  unit  VIs-1. 

Diinmore  Series 

The  Dunmore  series  consists  of  w ell draiiu'd,  deep  soils 
with  a  very  tine  textured  subsoil,  on  ridges  of  cherty  liuu'- 
stone  in  the  western  part  of  the  county.  These  ridges  lie 
above  most  of  the  other  soils  of  the  iunnediate  areas. 
Higher  than  the  Dunmore  soils,  in  some  places  on  the 
same  ridges,  are  soils  of  the  Elliber  and  Frederick  series. 

The  Duiunore  soils  are  not  extensive,  since  they  occu])y 
less  than  100  aci-es,  but  they  are  impoi-tant  where  they 
occur.  They  are  very  productive  under  good  management 
and  are  used  for  all  crops.  Tn  the  Hancock  area,  the  Dun- 
more soils  are  especially  well  liked  for  orchards. 

Profile  of  Dunmore  cherty  silt  loam,  •')  to  8  ])ercent 
slo])es,  moderately  eroded,  in  a  woodland  7.")  yards  east  of 
T^.S.  Highway  No.  ^r22  just  north  of  Hancock  and  about 
six-tenths  of  a  mile  south  of  the  Pennsylvania  State  line: 

A,  0  to  t)  inches:  very  dark  Ijrown  (lOYR  2  2)  cherty  .'iilt 
loam;  strong,  fine,  crumb  to  granular  structure; 
slightly  to  moderately  hard  when  dry,  frial)le  when 
moist,  and  slightly  plastic  and  slightly  sticky  when 
wet;  roots  abundant;  strongly  acid;  clear  to  abrupt 
boundary;  horizon  is  4  to  6  inches  thick. 

A..      6  to  II  inches:  dark-brown  (lOYR  4/3)  cherty  silt  loam; 

moderate,  fine,  crumb  to  granular  structure;  moder- 
ately hard  when  dry,  friable  when  moist,  and  moder- 
ately i)lastic  and  moderately  sticky  when  wet;  roots 
plentihil;  many  pores  of  all  sizes;  medium  acid; 
clear,  abrupt  boundary;  horizon  is  3  to  6  inches 
thick. 

B21  11  to  21  inches:  yellowish-brown  (lOYR  5/6)  very  cherty 
silty  clay  loam;  moderate,  fine  to  medium,  sub- 
angular  ijlocky  structure;  moderately  hard  to  hard 
when  dry,  moderately  firm  when  moist,  and  plastic 
and  sticky  when  wet;  roots  rather  few;  many  fine 
and  medium  pores;  medium  acid;  gradual,  wavy 
boundary;  horizon  is  8  to  18  inches  thick. 

Bs.n  21  to  40  inches:  strong-brown  (7.5YR  5/8),  cherty,  heavy 
clay  loam  to  clay;  very  slightly  and  faintly  streaked 
with  reddish  yellow  and  yellowish  red  (7.5YR  6/8 
and  SYR  5/6) ;  strong,  medium  to  coarse,  blocky 
structure;  hard  when  dry,  firm  when  moist,  and 
sticky  and  very  plastic  when  wet;  a  very  few  roots; 
many  fine  but  few  large  pores;  thin,  self-colored 
clay  skins  common;  strongly  to  very  strongly  acid; 
gradvial,  wavy  boundary;  horizon  is  14  to  20  inches 
thick. 


Bat  40  to  54  inches  -|- :  coarsely  vari{!gated,  yellowish-red 
and  yellowish-brown  (5YR  5/6  and  1()YR  5/8)  clay; 
comixHuifi,  weak,  medium,  i)laty  and  very  strong, 
tncdium,  l)locky  strut^ture;  hard  when  dry,  firm 
when  moist,  and  plastic  and  sticky  wlien  wet;  a 
few  isolatecl  roots;  conunon,  h(>avy,  red  clay  skins 
and  a  few  black  films  on  aggregates;  ])ractical]y 
no  chert;  strongly  lo  very  strongly  acid;  grades 
with  depth,  first  to  disintegrated  limestone,  and 
finall\'  to  hard,  cherty  limestone. 

'J'here  is  very  little  vai'iation  in  the  Dunmore  soils  in 
Washington  County.  .Mlhougli  they  ai-e  well  enough 
di-aim^d,  these  soils  ha\e  slow  ovei'all  permeahilily  because 
of  the  hiu'-textured  lower  subsoils. 

Dunmore  cherty  silt  loam,  to  8  percent  slopes, 
moderately  eroded  (DyB2). — Most  of  this  soil  is  used  for 
orchards.  The  .soil  is  well  suited  to  this  use  and  is  suitable 
for  all  the  conunon  cro])S.  There  are  44  acres,  in  capa- 
bility luiit  IIe-1. 

Dunmore  cherty  silt  loam,  8  to  15  percent  slopes, 
moderately  eroded  (DyC2). — This  soil  needs  especially 
good  management  lo  control  erosion,  as  ruiu)tf  is  ra])id 
on  a  soil  with  heavy  subsoil  on  such  slopes.  This  soil  is 
suitable  for  all  crops.  It  occu[>ies  50  acres  and  is  in  capa- 
bility unit  llle  1." 

Diinning^  Series 

The  Dunning  series  consists  of  very  poorly  drained, 
dark -colored  soils  in  recently  deposited  alluvial  materials. 
The  T)unning  soils  are  on  flood  plains  and  are  nuule  up 
chiefly  of  materials  washed  from  aivas  of  limestone  and 
limestone  soils.  They  are  })resent,  along  with  soils  of 
the  Huntington,  Tjiiulside,  Melvin,  and  in  places  the 
Warners  series,  on  these  flood  plains,  mostly  along  the 
smaller  streams  within  the  limestone  valley  sections  of 
the  cQunty. 

The  Dunning  soils  are  fairly  extensi\e  and  are  wide- 
spread in  the  county.  They  were  )U)t  mapped  by  them- 
selves in  this  county.  They  were  mapped  only  in  com- 
bination with  many  small  areas  of  Melvin  soils,  which 
have  a  lighter  gray  surface  layer  and  are  not  quite  so 
poorly  di'ained.  The  Melvin  soils  ai'e  described  elsewhere 
in  their  regular  alpliabetical  order. 

Profile  of  Dunning  silty  clay  loam,  in  a  natural  meadow 
area  about  75  yards  west  of  State  Koad  No.  ()4,  two-tenths 
of  a  mile  north  of  its  intersection  with  Gardenhour  Road: 

A„  0  to  3  inches:  very  dark  brown  (lOYR  2/2)  silty  clay 
loam;  no  apparent  structure;  hard  to  very  hard 
when  dry,  friable  when  moist,  plastic  and  sticky 
when  wet;  roots  abundant;  this  horizon  appar- 
ently consists  of  fairly  recent  overwash  material; 
mildly  alkaline;  gradual,  smooth  boundary;  hori- 
zon is  2  to  4  inches  thick. 

Ai2g  3  to  6  inches:  very  dark  grayish-brown  (lOYR  3  2) 
silty  clay  loam;  about  20  percent  medium,  faint 
mottles  of  dark  olive  gray  (5Y  3/2) ;  very  weak, 
coarse,  crumb  structure;  hard  when  dry,  friable 
when  moist,  and  plastic  and  sticky  when  wet; 
roots  plentiful  to  abundant;  this  horizon  also  is 
apparently  fairly  recent  overwash;  mildly  alka- 
line; clear  to  abrupt,  smooth  boundary;  horizon 
is  2  to  3  inches  thick. 

Ai3gb    6  to  12  inches:  dark  olive-gray  (5Y  3/2)  silty  clay  loam; 

about  10  percent  medium,  distinct  mottles  of  dark 
yellowish  brown  (lOYR  4/4);  very  weak,  coarse, 
blocky  structure;  moderately  hard  to  hard  when 
dry,  friable  to  rather  firm  when  moist,  and  plastic 
and  sticky  when  wet;  roots  fairly  plentiful;  gritty, 
containing  a  noticeable  amount  of  fine  and  medium 


WASIIINC'ION    COUN'rV,  MAKVLAM) 


25 


siiiul;  this  is  ;i|)|);u'('ii( ly  u  iiiiich  iililcr  A  iidri/.Dii 
tlint  iiius  l)c'cii  buried  l)y  ovorwasii ;  mildly  alka- 
line; abru])!,  smooth  houndary;  horizon  is  4  to  8 
inciics  thick. 

Ci„  12  to  IS  inches:  black  (5Y  2/1)  very  fine  sandy  clay 
loam  slightly  streaked  with  olive  (5Y  4/3);  com- 
pound, weak,  very  coarse  platy  and  weak,  nu>diuni 
to  coarse,  blocky  structure;  nio<lerat(>ly  hard  to 
hard  when  dry,  firm  when  moist,  and  sticky  and 
very  plastic  when  wet;  few  roots;  abundant  very 
fine  pores;  neutral;  gradual,  smooth  boundary; 
horizon  is  5  to  <S  inches  thick. 
18  to  32  inches:  very  dark  gray  (5Y  3/1),  very  dense 
fine  sandy  day  with  a  slight  bhiish  cast;  moder- 
ate, medium,  platy  and  moderate,  fine,  blocky 
structure;  hard  when  dry,  firm  and  brittle  when 
moist,  and  sticky  and  very  plastic  when  wet;  a 
\-ery  few  roots  in  upper  i)ortion;  slowly  permeable^; 
mildl\-  alkaline;  abrupt,  smooth  boundary;  hori- 
zon is  12  to  20  inches  thick. 

Dg  32  to  42  inches  +:  very  dark  gray  (5Y  3/1)  fine  grav- 
elly coarse  sandy  k>am  to  loamy  coarse  sand;  no 
structure;  slightly  to  moderately  hard  when  dry, 
friable  when  moist,  and  nonplastic  but  very 
sliglitly  sticky  when  wet;  no  roots;  rapidly  per- 
meable; this  is  a  water-bearing  stratum  of  low 
density,  with  distinct  flowage  when  saturated; 
mildly  alkaline. 

Tlie  overwash  layers  are  not  present  everywhere,  and 
in  some  places  they  are  tliicker  than  those  described. 
The  subsoil  in  some  places  is  lighter  grixy  and  the  mottling 
is  more  prominent  than  in  the  typical  profile.  The  surface 
layer  may  l)e  darker  with  a  liioher  content  of  oro;anic 
matter.  The  Dimnino:  soils  lia\  e  a  hi<rh  water  table  and 
very  slow  runolf.  They  are  practically  level  in  most  places. 

Dunning  and  Melvin  silty  clay  ioams  (Dz). — Because 
they  are  poorly  drained  to  very  pooi'ly  drained,  o-enerally 
difficult  to  drain  artificially,  and  subject  to  frequent  floocl- 
ino-,  these  soils  are  placed  in  capability  unit  VIw-1.  ]\Ian- 
agement  for  pasture  appears  to  be  the  most  feasible  use. 
There  are  1,896  acres.  In  some  places  the  surface  is  more 
nearly  silt  loam  than  silty  clay  loam,  but  this  makes 
no  difference  in  use  and  management.  This  mapping  unit 
is  about  GO  percent  Dunning  silty  clay  loam,  and  al)Out 
40  percent  ^felvin  silty  clay  loam.  Tn  some  places  the  two 
soils  merge  into  each  other  gradually. 

Edgemont  Series 

The  Edgemont  series  consists  of  deep,  well-drained,  acid 
soils  that  de\eloped  in  place  in  the  weathered  residue 
from  hard  quart zitic  sandstone.  The  Edgemont  soils 
occur  on  resistant  valley  ridges  and  on  the  lower  slopes 
and  spurs  of  mountains.  In  Washington  County  they  are 
mostly  on  the  lower  slopes  and  spurs  of  South  Mountain 
and  Elk  Ridge  and  close  to  the  Potomac  River  in  the 
area  just  north  of  Harpers  Ferry,  but  some  areas  are 
in  the  western  joart  of  the  county. 

Although  the  Edgemont  soils  are  not  highly  productive, 
they  are  suited  to  most  crops  grown  in  the  county.  They 
are  particularly  well  liked  for  orchards  and  berry  crops 
because  they  generally  have  good  air  drainage. 

Profile  of  Edgemont  channery  loam,  0  to  12  percent 
slopes,  in  a  forested  area  just  off  Shinan  Road,  2  miles 
northwest  of  its  intersection  with  Harpers  Ferry  Road, 
just  south  of  Dargan: 

Ai      0  to  4  inches:  very  dark  gray  (lOYR  3/1)  channery  loam; 

moderate,  very  fine,  granular  structure;  soft  when 
dry,  very  friable  when  moist,  and  nonplastic  and  nou- 


sticky  when  wet;  roots  abundant;  Hli^htly  aci<i;  al)- 
rupt,  wjivy  boundary;  horizon  Ih  2  to  5  iiidiCK  thick. 

A2  4  to  12  inciies:  liglit  yellowish-brown  (l()YR<)/4)  channery 
loam;  moderate  to  strong,  fine,  crumb  structure; 
slightly  hard  when  dry,  friable  when  moist,  and 
sticky  and  slightly  plastic  when  wet;  roots  ()lentiful ; 
some  fin(!  and  medium  and  many  largf;  pores  and  root 
channels;  medium  acid;  clear,  wavy  boundary;  hori- 
zon is  ()  to  8  inches  thick. 

B-ji  12  to  22  inch(?s:  brownish-yellow  HOYIl  fi/fi),  channery, 
gritty,  heavy  loam;  moderate,  medium,  blocky  anrl 
subangular  blocky  structure;  moderately  hard  to 
hard  when  dry,  moderatel\  firm  when  moist,  and 
moderately  plastic-  and  moderately  sticky  wh(fn  wet; 
roots  few;  some  fine  and  abundant  meflium  pfjres; 
strongly  acid;  grarlual,  wavy  boundary;  horizon  is  8 
to  12  inches  thick. 

B22  22  to  35  inches:  yellow  (lOYR  7/8),  channery,  gritty, 
heavy  loam  or  light  sandy  clay  loam;  iiKKierate  to 
strong,  medium,  blocky  aiifl  subangular  blocky  struc- 
ture; hard  when  dry,  firm  when  moist,  and  plastic  and 
moderately  sticky  when  wet;  very  few  roots;  many 
fine  and  medium  jiores,  contains  a  few  mica  flakes; 
strongly  acid;  gradual  to  clear,  wavy  boundary;  h(jri- 
zon  is  12  to  20  inches  thick. 

B3,,,  35  to  41  inches:  mottled  or  variegated  yellow,  brownish- 
yellow,  and  yellowish-red,  channery  and  gritty  silt 
loam  to  light  silty  clay  loam;  weak  to  moderate,  me- 
dium, platy  structure;  hard  when  dry,  firm  and  brit- 
tle when  moist,  jjlastic  and  sticky  when  wet;  no  visi- 
ble roots;  pores  very  fine,  mostly  filled  with  clay; 
)jrowni.sh-\  ellow,  silty  coatings  on  major  aggregated 
surfaces;  this  is  a  thin,  rather  weakly  developed  silt- 
pan  or  fragipan  that  is  not  always  present  in  the  pro- 
file; considerable  very  fine  ciuartzite  gravel;  strongly 
acid;  gradual,  wavv  boundarv;  horizon  is  0  to  8  inches 
thick. 

C  41  to  50  inches:  variegated  red,  yellow,  and  brownish- 
yellow,  \'ery  gritty  and  channery  sandy  clay;  massive; 
hard  when  dry,  firm  when  moist;  no  roots;  strongly 
acid;  clear  to  abrupt,  irregular  boundarv;  horizon  is 
10  to  22  inches  thick. 

Dr     50  inches  + :  hard,  flaggy  to  slabby,  ciuartzitic  sandstone. 

There  is  considerable  variation  in  the  content  of  flags, 
stones,  and  fuie  gravel.  The  depth  through  the  subsoil 
ranges  from  about  24  inches  to  40  or  more.  The  silty 
fragipan  may  not  be  present  everywhere,  and,  when  it 
is  present,  it  is  sometimes  difficult  to  distinguish  it  from 
the  parent  material  of  the  upper  substratum. 

In  Washington  County  the  Edgemont  soils  were  not 
map])ed  l)y  tlieiiiselves.  They  were  mapped  in  undif- 
ferentiated units  with  some  of  the  soils  of  the  Laidig 
sei'ies.  The  soils  of  these  two  series  are  so  similar,  so 
closely  associated,  and  in  some  places  so  mixed  that  they 
were  mapped  together. 

Edgemont  and  Laidig  channery  loams,  0  to  12  per- 
cent slopes  (EdC). — This  ma[)[)ing  unit  is  made  up  of 
Edgemont  channery  loam,  along  Avith  areas  of  Laidig 
channery  loam  that  have  the  same  range  of  slope.  These 
soils  are  suitable  for  cultivated  crops,  but  the}^  are  not 
highly  productive  for  general  crops,  and  they  ai'e  subject 
to  erosion.  There  are  l,40o  acres  in  the  county,  in  capa- 
bility unit  He— 4. 

Edgemont  and  Laidig  channery  loams,  5  to  20  per- 
cent slopes,  moderately  eroded  (EdD2). — Erosion  has  been 
active  on  these  soils.  The  soils  may  be  cultivated  with 
care,  hut  high  yields  shoidd  not  be  expected,  except  per- 
haps from  orchard  and  berry  crops.  There  are  many 
small  areas,  most  of  them  marked  on  the  soil  maps,  where 
erosion  has  been  more  severe.  These  spots  should  receive 
special  treatment  to  prevent  further  soil  loss  or  damage. 


26 


SOIL  SURVEY  SERIES    1950,   NO.  17 


TluM'o  are  4,()13  acros  of  tliese  soils  in  the  county,  in  cai)a- 
bility  unit  Illo^. 

Edgemont  and  Laidig  channery  loams,  20  to  35  per- 
cent slopes,  moderately  eroded  (EdE2). — On  these  hilly 
soils  there  is  a  strong  hazard  of  erosion.  For  this  reason, 
the  2,ST0  acres  are  placed  in  capability  unit  IVe-!!  There 
are  many  more  severely  eroded,  small  areas  on  which  no 
cultivation  should  be  attem])ted,  except  pei-haps  for  hay 
crops  or  sodded  oi'cluirds.  These  severely  eroded  spots  are 
shown  on  the  soil  map. 

Edi>emont  and  Laidi«>'  channery  loams,  35  to  60  per- 
cent slopes,  moderately  eroded  (EdF2). — These  soils  are 
sleep,  but,  if  kept  in  good  sod,  they  could  be  safely 
grazed  on  a  limited  or  occasional  basis.  Otherwise,  they 
should  be  kept  in  forest  oi-  ])lanted  to  forest.  There  are 
aci'es,  in  ("qjability  miit  ^Te-L!. 

Edgemont  and  Laidig  very  stony  loams,  0  to  5  per- 
cent slopes  (EgA). — The  soils  of  this  unit  are  eithei'  Kdge- 
mont  or  Laidig  soils,  but  on  the  average  about  40  to  50 
percent  of  tlie  surface  is  occupied  by  stones  and  occasional 
boulders  and  rock  outcrops.  Some  of  these  areas  may  be 
mowed,  but  general  cultivation  is  impractical.  If  they 
remain  in  forest  or  are  used  for  pasture,  these  soils  are 
not  subject  to  deterioration.  The  127  acres  are  in  capa- 
bility unit  Vs-2. 

Edgemont  and  Laidig  very  stony  loams,  5  to  35  per- 
cent slopes  (EgD). — These  soils  have  enough  slo])e  that 
they  will  erode  under  use  as  pasture  if  they  are  not  well 
managed.  Stoniness  is  the  most  limiting  factor.  The 
soils  are  suitable  for  controlled  grazing  or  for  woodland. 
Timbering  should  be  botli  practical  and  economical.  There 
are  r2,.")24  acres  of  tliese  soils  in  tlie  county,  in  capability 
unit  VIs-2. 

Edgemont  and  Laidig  very  stony  loams,  35  to  60 
percent  slopes  (EgF). — These  soils  are  so  stony  and  steep 
that  they  aie  of  little  agricultural  importance,  except 
for  their  natural  timber.  Timber  operations  will  be  dif- 
ficult, and  forest  management,  especially  restocking  arti- 
licially,  nuiv  not  be  pi'acfical.  There  are  771  acres,  in  capa- 
bility" unit 'VIIs-2. 

Elliber  Series 

The  Elliber  series  consists  of  deep,  Avell-drained  soils 
on  sharp  ridges  of  very  impure,  cherty  limestone  in  the 
Appalachian  ridge  and  valley  section  of  the  western  part 
of  the  county.  In  many  places  the  Elliber  soils  are  near 
areas  of  the  Frederick  and  the  Dunmore  soils.  They  are 
less  red  than  the  Frederick  soils  and  do  not  have  a  heavy 
subsoil  like  that  of  the  Dunmore  soils. 

These  soils  are  fairly  extensive.  Tliey  are  fairly  fertile 
and  productive,  but  they  are  not  widely  used  for  agri- 
culture because  of  the  dominant  steep  slopes,  They  are 
po):)ular  for  orchards,  especially  in  the  Hancock  area. 

Profile  of  Elliber  chei'ty  loam,  5  to  12  pei'cent  slopes, 
moderately  eroded,  at  a  point  one-fourth  mile  west  of 
Hollow  Road,  seven-tenths  of  a  mile  south  of  the  Pennsyl- 
vania State  line : 

Ai  0  to  2  inches:  black  (lOYR  2/1)  cherty  loam;  weak,  fine, 
granular  structure;  soft  when  dry,  very  friable  when 
moist,  and  slightly  plastic  and  slightly  sticky  when 
wet;  roots  abundant;  slightly  acid;  clear,  wavy  bound- 
ar}';  horizon  is  1  to  3  inches  thick. 


Aj     2  to  8  inches:  dark-brown  (lOYR  4/3),  gritty,  cherty  loam; 

weak,  medium,  granular  structure;  slightly  hard  when 
dry,  very  friable  when  moist,  and  sliglitly  plastic  and 
sliglitly  sticky  when  wet;  roots  plentiful  to  abundant; 
many  i)ores  of  all  si/,(!s;  medium  acid;  clear,  wavy 
boundary;  horizon  is  5  to  8  inches  thick. 

B2  8  to  31  inches:  yellowish-brown  (lOYR  5/4),  gritty,  cherty, 
heavy  loam;  weak  to  moderate,  medium,  subangular 
blocky  structure,  readily  crushing  to  single  grains; 
moderately  hard  when  dry,  friable  when  moist,  and 
moderately  plastic  and  moderately  sticky  when  wet; 
roots  ])lentiful;  moderately  rapidly  i)ermeable  or  rap- 
idly permeable;  strongly  acid;  gradual,  wavy  to  irreg- 
ular boundary;  horizon  is  20  to  28  inches  thick. 

Ha  31  to  39  inches:  yellowish-brown  (lOYR  5/4),  very  gritty 
and  very  cherty,  light  silt  loam;  very  weak,  medium, 
subangular  blocky  structure;  moderately  hard  when 
dry,  friable  when  moist,  slightly  plastic  and  slightly 
sticky  when  wet;  roots  fairly  mimerous;  mcjderately 
rapidly  permeable  or  rapidly  permeable;  strongly  acitl; 
abru[)t,  irregular  l)ounrlarv ;  horizon  is  8  to  15  inclies 
thick. 

Dr    39  inches  +:  ledges  of  liard,  cherty  limestone. 

In  many  places  there  is  a  thin  C  horizon  or  layer  of 
soft,  decomposed  rock  just  above  the  hai'd  bedrock.  There 
is  considerable  variation  in  the  amount  of  chert  in  the 
soil,  and  in  some  places  there  are  outcrops  or  boulders 
of  hard,  cherty  limestone.  In  some  places  the  subsoil  is 
a  little  redder  than  that  in  the  profile  described,  par- 
ticularly in  areas  close  to  soils  of  the  Frederick  series. 
Locally,  drainage  may  be  somewhat  excessive,  particularly 
in  six)ts  where  the  content  of  chert  is  high.  Deep-rooted 
sod  crops,  including  well-sodded  orchards,  are  especially 
suited  to  these  soils. 

Elliber  cherty  loam,  5  to  12  percent  slopes,  moder- 
ately eroded  (EhB2). — The  slope  of  this  soil  is  moderate, 
and  there  has  been  some  active  erosion.  However,  the 
soil  is  suited  to  general  cultivation  under  good  manage- 
ment.   Tliei(>  ai'e  r)2n  acres,  in  (■a])al)ility  unit  IIe-20. 

Elliber  cherty  loam,  12  to  25  percent  slopes,  mod- 
erately eroded  (EhD2). — The  shjpe  of  this  .soil  is  steep 
enough  that  intensive  protection  must  be  })i'ovided  if  cul- 
tivated crops  ai'e  grown.  The  soil  is  widely  used  for 
orchards.    Tlie  71!)  acres  ai-e  in  capability  unit  IIIe-2f). 

Elliber  cherty  loam,  25  to  45  percent  slopes,  mod- 
erately eroded  (EhE2). — On  these  steej)  slopes  there  has 
been  some  erosion.  Clean  cultivation  should  be  avoided 
wherever  possible,  but  the  soil  is  well  suited  to  orchards 
and  sod  crops.  There  ai-e  629  acres,  in  capability  imit 
VIe-1. 

Elliber  cherty  loam,  45  to  55  percent  slopes  (EhF). — 
This  is  the  .steepest  Elliber  soil.  Practically  all  of 
the  areas  are  in  forest  and  should  remain  so.  There  are  81 
acres,  including  15  acres  that  have  a  somewhat  redder 
subsoil  than  normal.  This  soil  could  be  used  for  limited 
grazing,  or  for  forestry,  but  cultivation  would  be  im- 
practical. It  is  in  capability  unit  VIIe-1. 

Eroded  Land 

There  are  many  areas  in  all  parts  of  Washington  County 
that  have  been  severely  eroded  until  they  no  longer  are 
true  soils,  but  rather  remnants  of  soil  materials.  Although 
in  most  places  the  original  soil  series  can  be  estimated 
from  what  remains,  a  more  uniform  and  satisfactory 
classification  of  such  land  can  be  made  by  simply  naming 
the  kind  of  soil  material  involved. 


WASIIIN'OTON   COUNTY,  MARYLAND 


27 


111  \\'asliiii<il<)ii  ("oiiiily  ihcsc  scnoivlv  eroded  soils  can 
1)0.  divided  into  foui-  <ii-()Ui)s  aceordin*;-  to  parent  material  : 
(Jreenstone  materials,  limestone  materials,  sandstone  and 
quart zite  materials,  and  shale  and  schist  materials.  No 
])rolile  descriptions  are  f^iven,  because  in  most  places  there 
are  no  complete  soil  proliles  remainiiifj;. 

Eroded  land,  «?reenst(>ne  materials  (Em). — This  se- 
verely eroded  soil  occupies  scattered  areas,  mostly  in 
rieasant  Valley.  Adjacent  soils  are  <^enerally  of  the 
P^iucpiier  and  Myersville  series.  The  remaining?  material 
consists  mostly  of  soft,  decomposed  <>;i'eenstone  or  meta- 
basalt,  with  many  fra<;ments  of  harder  rock.  In  some 
])laces  there  is  a  little  soil  left  between  gullies,  but  the 
f^uUies  are  either  very  close,  or  very  deep,  or  both.  In 
other  places  sheet  erosion  has  removed  all  of  the  true  soil, 
leavin*;  only  rou<:h  and  ixullied  parent  material  or,  in 
places,  bedrock.  Slopes  ranj^e  I'rom  about  10  to  45  percent. 

Such  areas  are  not  suitable  for  crops,  and,  as  a  rule, 
are  not  suited  even  to  grazing.  Vegetation  can  be  re- 
established, however,  if  care  and  effort  are  used  to  do 
so.  Although  these  areas  are  of  little  value  in  themselves, 
they  should  have  treatment  to  prevent  their  enlargement. 
They  are  always  hazards  to  other  land,  because  runoff 
from  them  will  cause  erosion  damage  to  spread.  If  re- 
vegetated,  they  will  not  only  be  less  of  a  threat  to  agri- 
cultural land,  but  they  can  be  of  some  value  as  wildlife 
protection  areas  or  as  woodlots.  There  are  101  acres  of 
this  kind  of  eroded  land  in  the  county,  in  capability 
unit  VIIe-2. 

Eroded  land,  limestone  materials  (En). — This  land 
consists  of  severely  eroded  areas  of  what  were  once  soils 
of  the  DufReld,  Frankstown,  Frederick,  Hagerstown,  and 
]\Iurrill  series.  Rocky  areas  are  not  included.  Because 
these  materials  were  derived  from  or  underlain  by  lime- 
stone, they  are  potentially  somewhat  more  fertile  and 
useful  than  many  of  the  severely  eroded,  nonlimestone 
areas.  Because  of  this,  they  are  placed  in  capability  unit 
VIIe-1.  There  are  617  acres  in  the  county. 

Eroded  land,  sandstone  and  quartzite  materials 
(Er). — These  are  scattered  remnants  of  what  were  once  soils 
of  the  Dekalb,  Edgemont,  Holston,  Monongahela,  and 
Waynesboro  series.  The  areas  have  been  very  severely 
eroded  and  are  strongly  or  very  strongly  acid.  Reestab- 
lishing some  kind  of  protective  vegetation  is  likely  to  be 
more  difficult  than  on  areas  of  greenstone  or  limestone 
materials.  The  221  acres  are  in  capal)ility  unit  VIIe-2. 

Eroded  land,  shale  and  schist  materials  (Es). — This 
land  consists  of  areas  that  were  the  shallow  and  somewhat 
droughty  Buchanan,  Berks,  Calvin,  Hazel,  Litz,  Chandler, 
Talladega,  Teas,  or  Montevallo  soils.  It  has  been  very 
severely  eroded,  and,  with  only  tlie  underlying  shaly  or 
channery  parent  material,  or  in  places  bare  bedrock  re- 
maining, revegetation  may  be  slow  and  difficult.  It  will 
be  worthwhile  if  some  protection  of  adjacent  lands  is 
accomplished.  There  are  3,890  acres  of  this  land  in  the 
county,  in  capability  unit  VIIe-3. 

Etowah  Series 

The  Etowah  series  consists  of  deep,  well-drained,  red 
soils  on  old  stream  terraces.  The  materials  from  which 
these  soils  have  been  developed  are  very  old  deposits  of 
alluvium  that  originally  washed  from  areas  of  soils  on 


liiiiesloiie.  The  I'Jowiili  s<»ils  are  in  I  lie  ^aiiic  localities 
as  the  Hagerstown,  Duflield,  and  Frankstown  soils  of  the 
valley  uplands  and  the  Huntington,  Lindside,  and  other 
soils  of  the  flood  plains  or  bottom  lands. 

The  Etowah  soils  strongly  resemble  tli(!  Waynesboro 
soils,  but  the  Waynesboro  soils  have  developed  in  sand- 
stone and  shale  materials  on  the  terraces  instead  of  in 
limestone  materials.  The  Etowah  soils,  as  a  rule,  are 
only  slightly  acid,  but  the  Waynesboro  soils  are  very 
strongly  acid. 

The  Etowah  soils  are  fertile  and  productive  and  are 
mostly  in  crops  or  pastures.  Only  a  few  small  areas 
remain  in  woodland. 

Profile  of  Etowah  gravelly  loam,  0  to  3  percent  slopes, 
at  a  point  in  a  cultivated  area  30  yards  south  of  State 
Road  No.  ()0,  about  six-tenths  of  a  mile  west  of  State 
Road  No.  62,  on  a  terrace  of  Antietam  Creek  just  west 
of  Leitersburg: 

Ap  0  to  9  inches:  yello\vish-l)r(jwii  (lOYR  .5/4),  gravelly,  heavy 
loam;  moderate,  fine,  crumb  structure;  moderately 
liard  when  dry,  friable  when  moist,  slightly  plastic  and 
slightly  sticiiy  when  wet;  roots  abundant;  about  1.5 
percent  waterworn  chert  gravel;  medium  acid;  abrupt, 
smooth  boundary;  horizon  is  7  to  10  inches  thick. 

Bi  9  to  16  inches;"  reddish-yellow  (7. SYR  6/6),  gravelly, 
slightly  gritty,  heavy  silt  loam;  moderate  to  strong, 
fine,  subangular  blocky  structure;  hard  when  dry, 
moderately  firm  when  moist,  and  {)lastic  and  sticky 
when  wet;  roots  fairly  j)lentiful;  many  fine  and 
medium  pores;  about  20  percent  waterworn  chert 
gravel;  slightly  acid;  gradual  to  clear,  smooth  bound- 
arv;  horizon  is  4  to  9  inches  thick. 

B.,  16  to  33  inches:  yellowish-red  (SYR  S/6  to  5/8),  gravelly, 
slightly  gritty  silty  clay  loam;  strong,  medium,  blocky 
structure;  very  hard  when  dry,  firm  when  moist,  and 
plastic  and  sticky  when  wet;  a  few  roots  in  upper  part; 
many  fine  and  a  few  medium  pores;  strong,  self- 
colored  clay  skins  on  aggregate  surfaces  and  in  root 
channels;  about  2S  percent  waterw'orn  chert  gravel; 
neutral;  abrupt,  smooth  boundary;  horizon  is  12  to  20 
inches  thick. 

C  33  to  42  inches  +  :  yellowish-red  (SYR  4/6)  very  gravelly 
coarse  sandy  clay;  massive;  slightly  to  moderately 
hard  when  dry,  friable  to  firm  when  moist,  and  moder- 
ately plastic  and  sticky  when  wet;  no  roots;  moder- 
ately slowly  permeable;  neutral  to  mildly  alkaline. 

The  greatest  variations  in  the  Etowah  soils  in  the  county 
are  in  the  content  of  gravel  in  the  surface  layer  and  sub- 
soil and  in  the  depth  to  the  highly  gravell}'  substratum. 
Some  areas  are  practically  free  of  gravel,  particularly  in 
the  surface  layer.  Depth  to  the  substratum  is  24  to  -10 
inches  or  more,  but  most  areas  are  at  least  36  inches  deep. 
The  profile  in  some  areas  is  slightly  less  red  than  the 
profile  described;  in  other  areas  it  is  more  red. 

Etowah  gravelly  loam,  0  to  3  percent  slopes  (EtA). — 
There  are  97  acres  of  this  nearly  level  soil,  all  of  them 
in  use.  Because  the  soil  is  w^ell  drained,  nearlj^  level, 
productive,  and  subject  to  practically  no  hazard,  it  is 
placed  in  capability  miit  I-l. 

Etowah  gravelly  loam,  3  to  8  percent  slopes,  mod- 
erately eroded  (EtB2). — This  soil,  which  occupies  363  acres, 
is  sloping  and  has  been  somewhat  eroded.  Because  of  the 
erosion  hazard,  the  soil  is  placed  in  capability  unit  IIe-1. 

Etowah  gravelly  loam,  8  to  15  percent  slopes,  mod- 
erately eroded  (EtC2). — The  slope  of  this  soil  is  great 
enough  so  that  it  must  be  carefully  managed  and  protected 
for  full  use.  The  182  acres  of  this  soil  are  in  capability 
unit  IIIe-1. 


28 


SOIL  SURVEY   SKHIES    1959,  NO.  17 


Etowah  gravelly  loam,  15  to  25  percent  slopes,  mod- 
erately eroded  (EtD2). — Tliis  is  I  he  stcepesl  of  (lie  P^lowali 
soils.  ThtMv  are  only  40  acres.  In  about  9  acres  tlie  profile 
is  more  silty  and  less  g-ravelly  (ban  the  one  described. 
About  (1  acres  have  slopes  slialitly  more  than  ^5  percent. 
All  of  these  areas  should  be  ke])t  in  sod  most  of  the  time, 
but  an  occasional  cultivated  crop  in  a  lon<>'  I'otation  may 
be  ])V()(bic('(l.    Tills  soil  is  in  ca|)abilily  unit  IVe-1. 

Etowah  silt  loam,  0  to  '.i  percent  slopes  (EwA). — This 
soil  contains  little  <>'ravel  in  the  surface  layer,  and  the 
surface  layer  is  much  more  silly  than  that  of  the  gravelly 
loams.  This  is  an  excellent  soil,  suited  to  all  crops,  and 
subject  to  no  particular  hazard.  Tlie  154  acres  are  in 
ca])ability  unit  I-l. 

Etowah  silt  loam,  to  8  percent  slopes,  moderately 
eroded  (EwB2). — Tiiis  soil  has  enouiiii  slope  lo  be  subject 
to  some  ei'osion.  It  is  suitable  for  all  crops  <ii-()wn  in  the 
area  and  is  j)i-oductive  uiuler  j^ood  uianao-ement .  Tliere 
are  339  acres,  in  cai)ability  unit  Ile-I. 

Etowah  silt  loam,  8  to  15  percent  slopes,  moderately 
eroded  (EwC2). — The  slope  of  this  soil  is  jjreat  enou<>-h  so 
that  particularly  <>-ood  manafrenient  is  required  for  full 
use  wit]u)ut  dama<;e.  The  188  acres  are  in  capability 
unit  nie-1. 

Fauquier  Series 

The  Fauquier  series  consists  of  deej),  well -drained,  red 
soils  that  have  been  developed  from  materials  weathered 
from  a  rock  known  as  greenstone,  or,  more  properly,  meta- 
basalt.  The  Fauquier  soils  occur  in  valleys  and  also  on 
ridges  and  on  low  mountains  of  the  Blue  Ridge.  They 
are  the  most  pi'ominent  soils  of  the  Pleasant  Valley  area 
between  Soutli  ^lountain  and  Elk  Eidge.  In  the  valleys 
they  are  closely  associated  with  the  Myersville  soils,  and 
on  the  mouiitains,  with  the  Highfield  soils.  The  soils  of 
both  the  ]\[yersville  and  Highfield  series  are  similar  to 
the  Faucjuier  but  are  nuich  less  red.  All  of  these  soils 
have  developed  from  the  same  parent  rock. 

The  Fauquier  soils  are  both  extensive  and  important 
in  Washington  County.  They  are  fertile  and  productive, 
more  or  less  easily  managed,  and,  except  for  the  most 
stony  areas,  are  intensively  used  for  general  crops,  hay, 
pasture,  and  orchards. 

Profile  of  Fauquier  channery  loam,  0  to  5  percent  slopes, 
in  a  small  wooded  area  three-tenths  of  a  mile  directly 
south  of  the  public  school  at  Rohrersville  : 

Ai  0  to  4  inches:  dark  reddish-brown  (SYR  3/2),  channery, 
heavy  loam;  moderate,  coarse,  crumb  structure;  mod- 
erately hard  when  dry,  friable  when  moist,  and 
slightly  plastic  and  slightly  sticky  when  wet;  roots 
abundant;  slightly  acid;  clear,  wavy  boundary;  hori- 
zon is  2  to  5  inches  thick. 

A2  4  to  9  inches:  yellowish-red  (5YR  4/6),  channery,  heavy 
loam  or  light  silt  loam;  moderate,  medium,  crumb 
structure;  moderately  hard  wlien  dry,  friable  when 
moist,  and  slightly  plastic  and  sticky  when  wet;  roots 
plentiful;  abundant  fine  and  medium  pores;  medium 
acid;  clear  to  abrupt,  wavy  boundar\-;  horizon  is  3  to 
6  inches  thick. 

B21  9  to  20  inches:  yellowish-red  (5YR  5/6),  channery,  heavy 
silt  loam;  moderate,  medium,  subtingular  blocky 
structure;  hard  when  dry,  friable  to  firm  when  moist, 
and  moderately  plastic  and  moderately  sticky  when 
wet;  roots  fairly  plentiful;  many  fine  and  medium 
pores;  medium  "acid;  gradual,  wavy  boundary;  hori- 
zon is  8  to  15  inches  thick. 


B.,2    20  to  41  inches:  red  (2.5YR  4/8)  channery  silty  clay  loam; 

very  strong,  medium,  blocky  and  subangular"  blocky 
structure;  very  hard  when  dry,  firm  when  moist,  and 
plastic  and  sticky  when  wet;  very  few  roots;  itiany  fine 
but  few  large  })ores;  heavy,  almost  continuous,  S(?lf- 
colored  clay  skins;  strongly  acid;  gradual,  wavy 
l)(>uiidary;  horizon  is  15  to  30  inches  thick. 

B23  41  to  50  inches:  variegated  vellowish-red,  rcddisli-vcllow, 
and  brownish-yellow  (5VR  5/8,  7.5VR  (i/S,  ami  lOYR 
6/8)  silty  clay  loam  to  silty  clay;  very  strong,  coarse, 
blocky  and  subangular  blocky  structure;  luird  when 
dry,  firm  when  moist,  and  plastic  and  sticky 
when  wet;  practically  no  roots;  many  fine  but 
few  large  pores;  contains  some  stoiu!  fragments, 
mostly  highly  decomposed;  almost  contimious,  self- 
colored  clay  skins  and  disconl  inuous,  black  films; 
slightly  acid;  clear,  wavy  boundary;  horizon  is  8  to  12 
inches  thick. 

Ci  50  to  ()2  inches:  very  .slightly  variegated  but  essentially 
yellowish-red  (5YR  4/8),  decomposed  metabasalt 
schist;  inherited  laminar  structure;  very  hard  when 
dry,  firm  or  very  firm  when  moist,  and  plastic  and 
sticky  when  wet;  no  roots;  a  few  heavy,  red  clay  flows 
and  some  black  films;  medium  to  strongly  acid ;  grad- 
ual, irregular  boundary;  horizcjn  is  10  to  1  5  inches  thick. 

C2  62  to  72  inches  +:  highly  variegated  red,  reddish-brown, 
vellowish-brown,  and  olive-l)rown  (2.5VR  4/6,  5VR 
4/4,  lOYR  5/6,  and  2.5Y  4/4),  partly  de(;omposed 
metabasalt  schist ;  very  hard  to  extremely  liard  when 
dry,  and  very  firm  when  moist  or  wet;  medium  acid. 

Tlie  greatest  variation  in  the  Fauquier  soils  is  in  the 
amoimt  and  size  of  rock  fragments.  The  silt  loams  have 
practically  no  fragments;  tlie  channery  loams  have  many 
flat  fragments  as  miicli  as  V>  inches  in  length:  and 
the  very  stony  loams,  in  some  places,  are  ledgy  and  boul- 
dery.  A  shallow  ])hase  of  t  he  silt  loam,  less  than  24  inches 
deep  to  the  siibsti'atum,  is  ])resent  in  some  places.  Culti- 
vated areas  have  brown  surface  soil  where  there  has  been 
little  erosion,  and  red  surface  soil  where  erosion  has  been 
severe.  Some  of  the  stony  and  steep  soils,  particularly 
in  the  moimtains,  have  somewhat  less  strongly  developed 
horizons  than  those  descrilied. 

Fauquier  channery  loam,  0  to  5  percent  slopes  (FaB). — 
This  soil  has  the  profile  described.  Althougli  most  areas 
have  been  cidtivated,  there  is  little  erosion  because  of  the 
low  risk  and  general  good  management.  This  fairly  easily 
nuiiutged,  productive  soil  is  in  capal)ility  unit  I— i.  There 
ai'e  244  acres. 

Fauquier  channery  loam,  5  to  10  percent  slopes,  mod- 
erately eroded  (FqB2). — This  is  an  extensive  soil  tliat 
covers  1,735  acres.  Slopes  are  great  enough  so  that  there 
has  been  active,  btit  not  severe,  erosion  in  most  places.  The 
soil  is  suitable  for  all  crops  grown  in  the  area  and  is  in 
capability  unit  1  Ie-4. 

Fauquier  channery  loam,  10  to  20  percent  slopes, 
moderately  eroded  (FaC2). — This  soil  occupies  1,144  acres. 
Ik'cause  of  the  slope,  intensive  good  management  is  re- 
quired to  prevent  erosion.  The  soil  is  in  capability  unit 
Ille— t.  Included,  however,  are  32  acres  that  have  been 
rather  severely  eroded.  These  included  areas,  shown  on 
the  soil  map,  should  be  kept  in  sod  or  otherwise  managed 
as  if  they  were  in  capability  tniit  VIe-2. 

Fauquier  channery  loam.  20  to  35  percent  slopes, 
moderately  eroded  (FaE2). — Here  are  271  acres  sufficiently 
steep  so  that  their  use  for  cultivated  crops  is  strongly 
limited.  Only  about  one  cultivated  crop  in  every  4  or  5 
years  should  be  grown,  with  the  surface  protected  by  sod 
most  of  the  time.  This  soil  is  in  capability  unit  IVe-3. 


WASI  IIM;  ION    COUNTY,  MAHVKAXD 


29 


Fauquier  silt  loam,  0  to  ."5  percent  slopes  (FsA).  This 
soil,  -A  sill  loiuu,  is  like  tiic  soil  dcscrihcd  in  the  typical 
prolilc,  o.\c('i)t  that  the  surl'iicc  layer  is  soiiiowliat  liiii'i' 
in  texture  and  there  are  few,  if  any,  rock  fraj^nients.  These 
nioi-e  level  areas,  luakinp:  up  41  acres,  are  in  (•af)al)ility 
unit  I^. 

Fauquier  silt  loam,  3  to  10  percent  slopes,  moder- 
ately eroded  (FsB2). — Tliis  soil  is  sloping-  and  soincwhal 
(M'odcd.  It  is  an  excellent  soil,  but  it  needs  the  niana<re- 
nienl  of  capahility  unit  Ile-4.  Theiv  are  2S1)  acres  in 
the  county. 

Fauquier  silt  loam,  10  to  20  percent  slopes,  mod- 
erately eroded  (FsC2). — This  soil  is  strongly  sloi>in<r,  and 
erosion  has  been  active.  Because  of  this  increased  hazard, 
the  soil  is  in  capability  mnt  IIIe-4.  There  are  93  acres, 
including  '2  acres  that  have  been  severely  eroded. 

Fauquier  silt  loam,  shallow,  3  to  20  percent  slopes, 
moderately  eroded  (FfC2). — This  soil  is  like  the  other 
Fau(iuier  silt  loams,  except  tliat  the  soil  mantle  is  inucli 
thinner,  with  only  about  18  to  24  inches  above  the  sub- 
stratum. Because  of  the  shallowness  of  this  soil,  clean 
cultivation  should  be  limited  if  the  soil  is  to  be  kept  pro- 
ductive. Hay  crops,  pastures,  and  orchards  should  be 
especially  well  suited  on  most  areas.  The  42  acres  of  this 
soil  are  in  capability  unit  IVe-o. 

Fauquier  very  stony  loam,  5  to  35  percent  slopes 
(FrE). — This  soil  contains  stone  fragments  large  enough 
and  numerous  enough  to  prevent  practical  cultivation.  It 
occurs  mostly  on  South  Mountain  and  Elk  Kidge.  That 
part  in  forest  should  probably  so  remain  and  should 
produce  excellent  timber.  Cleared  areas  are  suitable  for 
pasture  if  grazing  is  carefully  controlled.  The  435  acres 
of  this  soil  are  in  capal)ility  unit  VIs-2. 

Frankstown  Series 

The  Frankstown  series  consists  of  moderately  deep, 
well-drained  soils  that  have  been  developed  in  materials 
that  weathered  from  impure  limestone.  The  parent  lime- 
stone contains  nuich  shale  and  chert  and  in  some  places 
thin  seams  of  sandstone.  The  Frankstown  soils  are  simi- 
lar to  the  DutHeld  soils,  but  they  are  not  so  deep.  They 
also  contain  many  more  residual  fragments  of  chert  and 
shale  and  in  places  residual  fragments  of  limestone  and 
sandstone.  The  Frankstown  soils  occupy  ridgelike  areas 
"within  the  gi'eat  limestone  valley  in  the  eastern  part  of 
the  county. 

I'ractically  all  areas  have  been  cleared  for  agricidture, 
and  no  undisturbed  forests  remain.  The  Frankstown  soils 
are  fertile  and  productive,  and,  although  they  are  some- 
what shallower  than  the  Duffield  and  the  Hagerstown 
soils  of  the  same  areas,  they  are  still  among  the  best 
farming  soils  of  the  county. 

Profile  of  P^rankstown  channery  silt  loam,  0  to  3  per- 
cent slo):)es,  at  a  point  in  a  cultivated  area  about  50  yards 
southwest  of  the  intersection  of  U.S.  Highway  No.  40 
with  Beaver  Creek  Eoad: 

Ap  0  to  8  inches:  dark  grayish-brown  (lOYR  4/2)  channery 
silt  loam;  moderate,  medium,  crumb  structure;  fri- 
able when  moist,  sticky  and  slightly  plastic  when 
wet;  roots  abundant;  some  chert  fragments  and  shale 
chips  along  with  sandstone  fragments;  about  20  per- 
cent coarse  fragments;  medium  acid;  clear  to  abrupt, 
slightly  wavy  boundary;  horizon  is  6  to  8  inches 
thick. 


B21  M  to  IS  iiii  his:  light  ycliowish-hrown  flOYR  0/4),  (rhun- 
iiery,  light  silly  clay  loam;  moderate  to  .strong, 
medium,  subangular  blocky  structure;  somewhat  firm 
when  moist,  iilastic  and  sticky  when  wet;  roots 
conunon;  m.'iny  fine  ;in(l  medium  jjores;  about  1.5  pr?r- 
cent  stone  fragments,  with  souh'  shale  and  ch(!rt; 
strongly  acid;  gradual,  wavy  btjundary;  horizon  is  8 
to  12  inches  t  hick. 

Bj.  18  to  29  inches:  yellowish-brown  (lO'S'R  5/0)  silly  clay 
loam;  strong,  medium  to  coarsf!,  blocky  structure; 
firm  when  moist,  plastic  and  sticky  whf;n  wet; 
roots  few;  idinost  continuous,  self-colored  clay  skins 
on  aggregates  and  in  pores;  black  films  on  somf;  ag- 
gregates, becoming  larger  and  more  frequent  with 
increasing  depi  h;  at  least  25  percent  coarse  fragments, 
mostly  shale  but  with  some  chert;  medium  acid; 
clear,  strongly  wavy  to  irregular  boundary;  horizon 
is  10  to  15  inches  thick. 

C  29  to  44  inches;  about  90  ])ercent  greenish  shale,  with 
some  chert  fragments;  infiltratefl  and  coatefi  with 
brown  aiui  yellowish-brown  (7.5^  I{  5/4  anrl  1()\'K 
5/4)  silt  or  clay;  scjiih'  shale  surfaces  strongly  etched 
by  roots;  nu-dium  acid;  gradual,  irregular  boundary; 
horizon  is  12  to  24  or  more  inches  t  hick. 

Dr    44  inches  -|-  :  hard,  cherty  and  shaly  limestone. 

Frankstown  extremely  rocky  silt  loam,  0  to  25  per- 
cent slopes  (FuD). — Tliis  soil  is  so  extremely  rocky  that, 
even  though  it  has  not  been  significantly  eroded  and 
slopes  are  not  very  gi'eat,  it  can  ser\e  no  more  tiseful 
purpose  than  very  limited  grazing.  Fi-om  about  40  to 
nearly  90  percent  of  the  surface  is  occupied  Ijy  ledges 
and  massive  outcrops.  The  most  suitable  use  probably  is 
for  woodland.  There  are  9(S3  acres,  in  capabilitv  unit 
VlIs-1. 

Frankstown  extremely  rocky  silt  loam,  25  to  45  per- 
cent slopes  (FuE). — The  slopes  of  this  soil  are  too  great 
and  there  are  too  many  rocks  for  crops  or  pasture.  The 
soil  can  best  be  used  for  woodland.  The  140  acres  are 
in  capability  unit  VIIs-1. 

Frankstown  very  rocky  silt  loam,  3  to  15  percent 
slopes,  moderately  eroded  (FvC2). — This  soil  is  neither 
steep  nor  severely  eroded,  but  there  are  enough  outcrops 
of  limestone  to  make  cultivation  impractical.  Up  to 
about  40  percent  of  the  surface  is  occtipied  by  rock 
ledges.  Hay  might  be  grown  in  some  places,  but  a  more 
practical  use  would  be  for  i)ermanent  pasture.  There  are 
2,413  acres,  in  capal)ility  unit  VIs-1. 

Frankstown  very  rocky  silt  loam,  8  to  15  percent 
slopes,  severely  eroded  (FvC3). — This  soil  has  been  so 
severely  eroded  that  no  hay  crops  should  be  attempted 
and  grazing  will  have  to  be  strictly  limited.  The  586 
acres  of  this  soil  should  be  reforested.  Thev  are  in  capa- 
bility unit  VIIs-1. 

Frankstown  very  rocky  silt  loam,  15  to  45  percent 
slopes,  moderately  eroded  (FvE2). — On  this  very  rocky 
soil,  erosion  has  not  been  severe  bitt  slopes  are  too  great 
for  any  attempt  at  cultivation.  Permanent  pasture  would 
be  the  most  intensive  suitable  use  for  this  soil.  There 
are  519  acres,  in  capability  unit  VIs-1. 

Frankstown  and  Duffield  Soils 

Except  for  the  extremely  rocky  and  very  rocky  soils, 
the  Frankstown  soils  do  not  occur  in  areas  large  enough 
to  be  mapped  separately  from  some  of  the  soils  of  the 
Duffield  series.  In  each  of  the  following  mapping  units, 
most  of  the  acreage  is  occupied  by  a  phase  of  Franks- 
town  channery  silt  loam.  There  are  many  places,  how- 


30 


SOIL  SURVEY  SERIES    1959,  NO.  17 


ever,  wliere  (he  soil  is  inuch  deei)er  or  (bicker  than  is 
normal  for  Franks(o\vn  soils.  Tliese  (lee])er  areas  are 
better  classified  as  Dullield  channery  silt  loam.  Tluis,  at 
any  ])la('e  williin  one  of  (he  followin*;  map])in<^  uni(s,  (he 
soil  may  be  eidier  Frankstown  or  Diillield.  Similar  phases 
of  (he  soils  of  bo(h  series  have  (he  same  capability  clas- 
siHcaiion  and  o(her  soil  <j;roupin<>s  and  similar  inter- 
pretations. 

Frankstown  and  Duffield  channery  silt  loams,  0  to  3 
percent  slopes  (FwA). — The  Duflield  soil  in  this  mapi)ing 
unit  con(ains  more  coarse  rock  fraj^ments  than  the  Duf- 
field soils  that  are  not  mixed  with  Frankstown  soils. 
These  nearly  level  soils  are  not  subject  to  any  particular 
hazard  if  they  are  cultivated  and  well  mana<;ed.  They 
are  in  capability  unit  11.   Tliei  e  are  244  acres. 

Frankstown  and  Duffield  channery  silt  loams, to  8 
percent  slopes,  moderately  eroded  (FwB2). — This  is  an 
extensive  ma[)|)in<i-  unit  (hat  occupies  (),!)09  aci-es.  The 
soils  can  be  re<rularly  cultivated  if  they  are  manaf^ed 
accordin<r  to  (he  re(|uiremen(s  of  capability  uni(  ITe-1. 

Frankstown  and  Duffield  channery  silt  loams,  0  to  8 
percent  slopes,  severely  eroded  (FwB3). — These  severely 
eroded  soils  can  be  cropped  safely  if  jriven  the  very  care- 
ful manairement  of  capability  unit  llle-30,  in  spite  of 
the  dama<i^e  by  erosion  that  has  already  occurred.  There 
are  60  acres. 

Frank.stown  and  Duffield  channery  silt  loams,  8  to 
15  percent  slopes,  moderately  eroded  (FwC2). — Slopes  of 
these  soils  are  j^reat  enough  so  (lia(  ])ar(icularly  good 
management  is  required  (o  prevent  further  erosion.  The 
soils  occupy  -5.111  acres  and  ai'e  in  ca])ability  unit  IIIe-1. 

Frankstown  and  Duffield  channery  silt  loams,  8  to 
15  percent  slopes,  severely  eroded  (FwC3). — Erosion  has 
been  severe  on  tliese  soils.  There  is  enough  soil  remain- 
ing to  support  hay  or  pasture,  however,  with  perhaps  an 
occasional  cultivated  ci-op  if  the  best  protective  measures 
are  followed.  The  1,36G  acres  are  in  capabilirv  miit 
IVe-1. 

Frankstow  n  and  Duffield  channery  silt  loams,  15  to 
25  percent  slopes,  moderately  eroded  (FwD2). — Although 
erosion  has  not  been  severe  on  these  soils,  slopes  are  so 
great  that  cultivation  should  be  attempted  only  in  very 
long  rotations.  The  soils  should  be  protected  by  a  cover 
of  sod  most  of  the  time.  Hay  can  be  grown  safely,  and 
this  is  an  excellent  soil  for  permanent  pasture.  There  are 
542  acres,  in  capal)ility  imit  IVe-1. 

Frankstown  and  Duffield  channery  silt  loams,  15  to 
25  percent  slopes,  severely  eroded  (FwD3). — Erosion  has 
been  severe  enough  on  these  slopes  so  that  further  cultiva- 
tion is  too  hazardous  to  be  attempted.  A  more  practical 
and  safer  use  would  be  for  pasture.  The  864  acres  are 
in  capal)ility  unit  VIe-1. 

Frankstown  and  Duffield  channery  silt  loams,  25  to 
45  percent  slopes,  moderately  eroded  (FwE2). — Erosion 
has  not  been  severe  on  these  soils,  but  the  slope  is  too  steep 
for  safe  cultivation.  They  will  make  good  pasture,  how- 
ever, with  the  management  of  capability  unit  YIe-1. 
There  are  162  acres. 

Frankstown  and  Duffield  channery  silt  loams,  25  to 
45  percent  slopes,  severely  eroded  (FwE3). — Tliese  steep, 
severely  eroded  soils  are  unsuitable  for  cultivation,  and 
most  areas  are  unsuitable  even  for  grazing.   A  much 


better  use  is  for  woodland.  The  89  acres  are  in  capability 
unit  VIIe-1. 

Frederick  Series 

The  Frederick  series  consists  of  deep,  well-drained, 
red  soils  on  ridges  of  impure,  cherty  limestone.  The 
Frederick  soils  are  redder  than  the  Duffield  and  the 
Frankstown  soils,  and  redder  and  finer  textured  than 
the  Elliber  soils.  Their  subsoil  is  not  so  fine  textured 
as  that  of  the  Duiunore  and  llagei-stown  soils. 

The  Frederick  soils  occur  in  Washing(on  County  only 
on  ridges  within  the  ridge  and  valley  section  to  the 
west  of  P^xirview  Mountain.  They  are  fairly  extensive. 
Where  cleared,  they  ai'e  used  for  general  crops,  pasture, 
.and  orchards,  but  a  considerable  ])ropoi-tion  is  still  in 
forest  because  of  the  rugged  topography. 

Profile  of  Frederick  cherty  silt  loam,  0  to  8  percent 
slopes,  moderately  eroded,  in  a  forested  area  50  yards 
soudi  of  U.S.  Highway  40,  eight-tenths  of  a  mile  east  of 
the  intersection  with  Indian  Springs  Koad : 

A,  0  to  2  inches:  black  (iOYR  2/1)  cherty  silt  loam;  weak, 

medium,  crumi)  structure;  soft  when  dry,  very  friable 
when  moist,  and  slightly  i)lastic  and  slightly  sticky 
when  wet;  roots  matted;  about  20  percent  angular 
chert  gravel;  slightly  acid;  abrupt,  wavy  boundary; 
horizon  is  2  to  4  inches  thick. 
.\2  2  to  7  inches:  dark-gray  (lOYR  4/1),  cherty,  light  silt 
loam;  weak,  fine,  crumb  structure;  slightly  hard  when 
dry,  friable  when  moist,  and  slightly  sticky  and 
slightly  i)lastic  when  wet;  roots  abundant;  nuiny  fine 
and  medium  pores  and  some  large  pores;  about  25 
percent  chert  gravel;  medium  acid;  clear  to  abrupt, 
wavy  boundary;  horizon  is  3  to  7  inches  thick. 

B,  7  to  12  inches:  reddish-yellow  (7.5YR  7/8),  cherty,  heavy 

silt  loam;  weak  to  moderate,  fine,  subangular  blocky 
structure;  moderately  hard  when  dry,  friable  to 
slightly  firm  when  moist,  and  moderately  plastic  and 
moderately  sticky  when  wet;  roots  plentiful;  many 
fi,ne  and  medium  pores;  about  15  percent  chert  gravel; 
strongly  acid:  gradual,  wavy  boundary;  horizon  is  4 
to  8  inches  tliick. 

Bji  12  to  25  inches:  reddish-yellow  (5YR  6/8),  cherty,  light 
silty  clay  loam;  moderate,  medium,  blocky  and  sub- 
angular  blocky  .structure;  hard  when  dry,  rather  firm 
when  moist,  and  plastic  and  sticky  when  wet;  roots 
fairly  thick;  continuous,  self-colored  clay  skins;  about 
15  percent  chert  gravel;  very  strongly  acid;  gradual, 
wavy  boundary;  horizon  is  10  to  17  inches  thick. 

B22    25  to  41  inches:  yellowish-red  {5YR  5/8)  silty  clay  loam; 

very  strong,  fine  to  medium,  blocky  structure;  hard 
or  very  hard  when  dry,  firm  when  moist,  and  plastic 
and  sticky  when  wet;  a  few  large,  woody  roots; 
strong,  almost  continuous,  self-colored  clay  skins  and 
many  black  films;  many  fine  and  medium  pores; 
almost  free  of  gravel;  very  strongly  to  extremely 
acid;  gradual,  wavy  to  irregular  boundary;  horizon 
is  12  to  25  inches  thick. 

C  41  to  48  inches  + :  variegated  red  and  vellowish-red 
(2.5YR  4/8  and  5YR  5/8)  cherty  clay  loam  to  light 
clay;  very  weak,  medium  to  coarse,  blocky  structure; 
hard  when  dry,  firm  when  moist,  and  sticky  and  very 
plastic  when  wet;  a  very  few  woody  roots;  moderate- 
ly slowly  permeable;  a  "few  thin,  red  clay  flows  and 
some  black  films;  neutral. 

In  some  places  the  profile  is  more  cherty  and  less  deep 
than  the  profile  described.  In  cultivated  areas  the  surface 
soil  is  less  gray  and  more  brownish  or  reddish  than  that 
in  the  profile  described.  The  Frederick  soils  are  nat- 
urally somewhat  less  productive  than  the  Duffield,  Dun- 


WASl  lINC  rON'   COUNTV,   MAI(VI-  \M) 


31 


iiioro,  and  Frankslown  soils.  In  Washiniilon  Counly  llicy 
arc  loss  used  for  ajiricnlt nrc. 

Frederick  cherty  silt  loam,  0  to  8  percent  slopes, 
moderately  eroded  (FyB2). — This  soil  has  the  prolilc  (k>- 
scrilx'd  and  I  he  mildest  slopes  of  any  soil  (d"  tiie  Fi-ed- 
erick  sei'ies  in  lln'  county.  Ki'osion  has  been  fairly  active 
in  many  places,  I)ut  it  has  not  been  .severe.  This  soil  is 
suited  to  all  crops,  but,  because  of  the  hazard  of  erosion,  it 
is  in  capability  unit  IIe-t2(l.  There  are  711  acivs. 

Frederick  cherty  silt  loam,  8  to  15  percent  slopes, 
moderately  eroded  (FyC2). —  Erosion  has  not  been  severe 
on  this  soil,  but,  because  of  tlie  dan<>-er  of  ei'osion  on  the 
slopes,  the  soil  is  in  capability  luut  lIIc-26.  There  arc 
672  acres. 

Frederick  cherty  silt  loam,  8  to  15  percent  slopes, 
severely  eroded  (FyC3). — This  soil  lias  been  so  sovei'ely 
eroded  that  it  is  suitable  for  only  an  occasional  clean- 
tilled  crop.  The  surface  must  be  protected,  as  by  sod, 
most  of  the  time.  Pasture,  hay  crops,  and  sodded  orchard 
are  suitable  uses.  There  are  63  acres,  in  capability  unit 
IVe-26. 

Frederick  cherty  silt  loam,  15  to  25  percent  slopes, 
moderately  eroded  (FyD2). — This  soil  has  been  oidy  mod- 
erately eroded,  and  it  is  in  capability  unit  IVe-26. 
There  are  517  acres.  The  soil  is  excellent  for  orcliards. 

Frederick  cherty  silt  loam,  15  to  25  percent  slopes, 
severely  eroded  (FyD3). — Erosion  has  taken  so  much  of 
this  soil  that  cultivation  is  no  longer  safe.  The  soil 
would  be  a  good  one  for  pennanent  pasture,  liowever,  or 
perhaps  for  sodded  and  carefully  managed  orchards. 
This  soil  occupies  57  acres  and  is  in  capabilitv  unit 
VIe-1. 

Frederick  cherty  silt  loam,  25  to  45  percent  slopes, 
moderately  eroded  (FyE2). — Erosion  has  not  been  very 
active  on  tliis  soil,  mostly  because  many  of  the  areas  are 
still  in  forest.  Any  cultivation  would  be  very  hazardous, 
and  permanent  pasture  would  be  a  more  practical  and 
safer  use.  There  are  465  acres,  in  capability  unit  VIe-1. 

Hagerstown  Series 

The  Hagerstown  series  consists  of  deep,  well-drained, 
reddish  soils  that  have  been  developed  in  materials 
weathered  from  hard,  fairly  pure  limestone.  The  Hagers- 
town soils  in  some  places  contain  scattered  to  very  numer- 
ous outcropping  ledges  of  limestone.  Tliese  soils  are 
used  for  all  crops,  but,  where  there  is  much  surface  rock, 
cultivation  is  hindered  and  the  usefulness  of  the  soils 
may  be  somewhat  to  very  strongly  limited. 

Soils  of  the  Hagerstown  series  are  the  most  extensive 
and  important  in  the  county.  They  are  important  in  the 
highly  developed  agriculture  of  the  limestone  areas.  The 
Hagerstown  soils  are  associated  with  many  other  soils, 
but  most  notably  with  those  of  the  Benevola,  Corydon, 
Duffield,  and  Frankstown  series. 

Profile  of  Hagerstown  silt  loam  in  a  forested  area  1 
mile  north  of  Keedysville  on  State  Road  No.  34: 

Ai  0  to  3  inches:  dark-brown  (7. SYR  3/2)  silt  loam;  moderate, 
fine  to  medium,  granular  structure;  very  friable  when 
moist,  moderately  plastic  and  moderately  sticky 
when  wet;  roots  abundant;  neutral;  clear  to  abrupt 
boundary. 

599553—62  3 


3  to  8  iiiclics:  l)ro\vn  (7.!i\']i  4/4)  silt  loarn;  tnodorat<?,  fine 
to  mcdiutii,  suljuiinnlar  blocky  strncliirc?;  blockH  crush 
wiu'ii  moist  to  moderate,  fine  granules;  friable  when 
moist,  moderately  [jlastic  and  m(>d<;rately  sticky 
when  wet;  rool  s  abMiidant ;  strongly  acid;  clear  to 
al)i  U[)l,  smool  li  lo  slinlilly  wavy  boundary. 

1{,  8  to  17  inches:  yellowish-red  diWl  4H>),  heavy  silt  loam 
or  light  silty  clay  loam;  mod(!ra((!,  medium,  sub- 
imgular  blocky  structure;  friable  or  firm  when  moist, 
I)lastic  and  sticky  when  W(!t;  roots  plentiful;  medium 
acid;  clear,  smooth  boundary. 

B,,  17  to  29  inches:  reddish-brown  (2.5YR  4/4)  silty  clay 
loam;  strong,  medium  to  coarse,  subangular  blocky 
structure;  very  hard  when  dry,  firm  when  moist,  arifi 
I)lastic  and  sticky  when  wet;  roots  rather  plentiful; 
common,  faint,  reddish-brown  clay  skins  and  common 
black  films  on  aggregates;  medium  acid;  gradual, 
smooth  to  wavy  boundary. 

B22  29  to  39  inches:  red  (2. SYR  4/())  silty  clay;  strong,  medium 
to  coarse,  blocky  structurt;;  very  hard  when  dry,  firm 
when  moist,  plastic  and  sticky  when  wet;  roots 
rather  few;  faint  to  distinct,  almost  continuous,  red 
clay  skins  and  conunon  black  films  on  aggregates; 
contains  some  fragments  of  weathered  limestone;  me- 
dium to  slightly  acid;  gradual  to  diffuse,  irregular 
boundarv. 

B3  39  to  49  inches:  yellowish-red  (SYR  4/6)  silty  clay  loam 
or  light  silty  clay;  moderate  to  strong,  fine  to  coarse, 
blocky  and  subangular  blocky  structure;  very  hard 
when  dry,  firm  when  moist,  and  plastic  and  sticky 
when  wet;  very  few  roots;  distinct  to  prominent  clay 
skins  and  common  black  films  on  aggregates;  contains 
some  fragments  of  weat  hered  limestone;  medium  acid; 
gradual  to  diffuse,  irregular  boundary. 

C  49  to  74  inches  +:  yellowish-red  (SYR  4/8)  silty  clay 
loam;  very  weak,  medium,  blocky  and  subangular 
blocky  structure;  hard  when  dry,  firm  when  moist, 
and  plastic  and  sticky  when  wet;  f(!W  to  common 
small,  black  films,  but  no  visible  clay  skins;  medium 
acid. 

In  rocky  areas  the  depth  of  the  soil  may  range  from 
very  shallow  to  very  deep.  The  uneroded  soil  in  wood- 
land is  almost  everywhere  a  silt  loam  at  the  surface,  but 
areas  that  are,  or  have  been,  cultivated  may  have  a  surface 
soil  of  silty  clay  loam  or  clay  loam.  In  large,  freshly 
cultivated  or  plowed  fields,  the  eroded  areas  stand  out 
because  of  the  redder  color  of  the  surface  that  is  exposed 
by  turning  up  some  subsoil. 

Some  very  rocky  and  extremely  rocky  areas  appear 
to  be  much  like  tlte  Corydon  very  rocky  clay  loams  and 
the  Corydon  extremely  rocky  clay  loams,  but  the  soil 
between  the  rock  outcrops  is  redder  and  much  deeper, 
on  the  average,  than  that  in  soils  of  the  Corydon  series. 
Where  there  is  much  impurity  in  the  parent  rock,  the 
Hagerstown  soils  grade  toward  the  Duffield  or  Franks- 
town  soils  in  characteristics. 

Hagerstown  clay  loam,  0  to  3  percent  slopes  (h^aA). — 
This  soil  has  a  profile  liive  the  one  described,  except  that 
the  surface  layer  is  clay  loam  instead  of  silt  loam.  The 
clay  loam  texttire  is  probably  a  result  of  past  erosion. 
If  so,  however,  tlie  previotts  erosion  cycle  has  been  stabi- 
lized, and  a  fairly  thick  stirface  soil  has  developed  that 
shows  little  evidence  of  recent  erosion. 

This  nearly  level  Hagerstown  clay  loam  is  suited  to 
any  crop  of  the  region  and  is  rather  easily  protected 
from  erosion.  It  is  somewhat  difficult  to  cultivate  and 
manage  because  of  the  fine-textured  surface  laj'er,  which 
is  more  plastic  and  more  sticky  than  that  of  the  soil  de- 
scribed as  representative  of  the  series.  The  117  acres  of 
this  soil  are,  therefore,  in  capability  unit  IIs-1. 


32 


SOIL   SURVEY   SERIES    1  959,   NO.  17 


Hagerstown  clay  loam,  0  to  8  percent  slopes,  mod- 
erately eroded  (HaB2). — Tliis  sl()])in<»:  soil  shows  some  evi- 
dence of  erosion.  Becanse  of  the  risk  of  furllier  erosion 
phis  the  difficulty  of  in:ui!i<iiii<i-  a  line-textured  soil,  tlie 
775  acres  are  in  capability  unit  He- it). 

Hagerstown  clay  loam, to  8  percent  slopes,  severely 
eroded  (HaB3). — Tlie  (gentle  sloi)es  of  this  Hafrerstown  clay 
loam  have  been  so  severely  eroded  that  further  cultiva- 
tion is  hazardous,  except  under  very  careful  management, 
and  management  is  difficult.  There  are  52  acres,  in  capa- 
bility unit  IITe 

Hagerstown  clay  loam,  8  to  15  percent  slopes,  mod- 
erately eroded  (HaC2). — This  Hagerstown  soil  has  slopes 
great  enough  so  tliat  culti\  ation  is  hazardous  uidess  care- 
ful management  is  practiced,  as  suggested  for  cai)ability 
unit  IIIe-80.  There  are  144  acres. 

Hagerstown  clay  loam,  8  to  15  percent  slopes,  se- 
verely eroded  (HaC3). — This  slojMug,  severely  eroded 
Ilagei'stown  clay  loam  can  be  farmed  in  very  long  rota- 
tions if  the  cover  is  sod  much  of  the  lime.  There  are  15.3 
acres  in  capability  unit  lVe-1. 

Hagerstown  clay  loam,  15  to  25  percent  slopes,  mod- 
erately eroded  (HaD2). — Tlie  slojje  makes  this  soil  some- 
what limited  in  usefulness.  Tlie  128  acres  are  in  capa- 
bility unit  IVe-1. 

Hagerstown  clay  loam,  15  to  25  percent  slopes,  se- 
verely eroded  (HaD3). — This  strongly  sloping,  severely 
eroded  soil  is  not  suitable  for  cultivation.  The  190  acres 
are  more  useful  as  permanent  pasture.  The  soil  is  in 
capability  unit  VIe-1. 

Hagerstown  extremely  rocky  silt  loam,  0  to  25  per- 
cent slopes,  moderately  eroded  (HbD2). — Tlie  protiie  of 
this  soil  is  like  that  of  the  silt  loam  described  as  repre- 
sentative of  the  .series,  except  that  it  is  extremely  rocky; 
from  al)out  40  to  nearly  !)0  percent  of  the  surface  of  the 
soil  is  occupied  by  limest(me  outcrops.  Altliougli  this  is 
a  good  soil,  the  rocks  prevent  or  severely  obstruct  almost 
any  kind  of  management,  except  possibly  the  treatment 
of  very  small  areas  by  hand.  Although  real  pasture  im- 
provement is  almost  impossible,  this  soil  can  be  used  for 
some  limited  grazing;  probably  a  better  use  is  for  -wood- 
lots.  There  are  fi,696  acres  in  capability  unit  VIIs-1. 

Hagerstown  extremely  rocky  silty  clay  loam,  0  to  25 
percent  slopes,  moderately  eroded  (HcD2). — This  soil  is 
like  the  one  described  in  the  preceding  paragraph,  ex- 
cept that  the  surface  layer  is  finer  in  texture.  It  can 
be  used  and  managed  in  the  same  way.  The  4,15fi  acres 
are  in  capaliility  unit  VITs-1. 

Hagerstown  extremely  rocky  soils,  25  to  45  percent 
slopes  (HdE). — These  soils  are  steep  and  extremely  rocky. 
They  are  not  suitable  for  crops  or  for  improved  pasture, 
but  they  would  make  excellent  woodlots  or  furnish  some 
very  limited  grazing.  There  are  111  acres,  in  capability' 
unit  VIIs-1. 

Hagerstown  silt  loam,  0  to  3  percent  slopes  (HeA). — 
This  soil  has  the  protiie  that  is  described  in  detail  as 
representative  of  the  Hagerstown  series.  It  is  nearly 
level  and  has  been  aflected  only  slightly  or  not  at  all 
by  erosion.  The  lack  of  erosion  is  either  because  the 
soil  remained  in  woodland  cover  or  because,  more  com- 
monly, it  was  very  well  managed  in  farming.  There  is 
no  better  soil  in  the  county  for  most  purposes.  It  can 
be  cultivated  safely  with  ordinary,  good  farming  meth- 


ods, is  highly  productive  uiidei-  good  management,  and 
is  suited  to  all  the  crops  of  the  icgion.  The  1,146  acres 
of  this  excellent  soil  ai-e  in  cai)ability  unit  I-l. 

Hagerstown  silt  loam,  0  to  8  percent  slopes,  mod- 
erately eroded  (HeB2). — This  is  the  most  extensive  soil  in 
Wasliington  County  and  one  of  the  better  ones.  Because 
it  has  been  long  in  use,  erosion  has  become  active  but  not 
dangerously  severe.  Altliougli  this  soil  can  be  used  for  all 
the  common  crops,  it  should  be  cultivated  only  with  the 
good  management  that  is  necessary  to  prevent  further 
damage  by  erosion.  This  soil  occupies  22,()()1  aci-es  and  is 
in  capal)ility  unit  IIe-1. 

Hagerstown  silt  loam,  8  to  15  percent  slopes,  mod- 
erately eroded  (HeC2). — This  sloping  soil  needs  careful 
management,  wnth  long  rotations  that  include  hay  or 
pasture,  to  prevent  damaging  erosion.  The  3,090  acres 
are  in  capability  unit  IIIe-1. 

Hagerstown  silt  loam,  15  to  25  percent  slopes,  mod- 
erately eroded  (HeD2). — The  slope  of  this  soil  is  too  steep 
for  regular  cult i\at i(jn.  The  soil  should  be  kept  under 
sod  most  of  the  time.  It  is  excellent  for  hay  and  pasture. 
The  2.")2  aci'es  are  in  capability  unit  IVe-1. 

Hagerstown  silty  clay  loam,  0  to  3  percent  slopes 
(HfA). — This  soil  is  similar  to  Hagerstown  silt  loam,  0  to 
3  percent  slopes,  except  that  the  surface  soil  contains 
less  silt  and  more  clay,  making  it  heavier  and  somewhat 
more  difficult  to  manage.  It  is  well  suited  to  all  the 
crops  grown  locally  and  can  be  cultivated  with  little 
danger  of  damage.  The  437  acres  are  in  capability 
unit  I-l. 

Hagerstown  silty  clay  loam,  0  to  8  percent  slopes, 
moderately  eroded  (HfB2). — Because  of  slope  and  the  risk 
of  further  erosion,  this  soil  must  be  managed  with  some 
care.  It  should  be  used  and  treated  as  discussed  under 
capability  unit  IIe-1.  There  are  4,038  acres  of  this  ex- 
cellent soil  in  the  county. 

Hagerstown  silty  clay  loam,  8  to  15  percent  slopes, 
moderately  eroded  (HfC2). — On  this  sloping  soil  very 
careful  management  is  necessary  for  cultivated  crops  if 
soil  damage  is  to  be  avoided.  This  is  an  excellent  soil, 
however,  and  it  is  highly  productive  under  good  man- 
agement. There  are  1,458  acres,  in  capability  unit  IIIe-1. 

Hagerstown  silty  clay  loam,  15  to  25  percent  slopes, 
moderately  eroded  (HfD2). — The  slopes  of  this  soil  are 
critical,  and  cultivated  crops  should  be  limited  to  1  year 
in  4  or  5,  with  a  sod  crop  on  the  land  most  of  the  time. 
The  153  acres  are  in  capability  unit  IVe-1. 

Hagerstown  very  rocky  silt  loam,  3  to  15  percent 
slopes,  moderately  eroded  (HgC2). — This  soil  has  a  pro- 
file much  like  the  one  described  as  representative  of  the 
series.  As  much  as  about  40  percent  of  the  surface  layer 
consists  of  outcropping  ledges  and  reefs  of  hard  lime- 
stone. Although  this  soil  has  fewer  outcrops  than  the 
Hagerstown  extremely  rocky  silt  loam,  there  are  too 
many  outcrops  for  any  regular  cultivation.  Because  of 
the  slope,  there  is  a  definite  erosion  hazard.  For  that 
reason,  grazing,  the  most  intensive  suitable  use,  must  be 
limited  and  carefully  managed.  The  rockiness  is  the 
chief  limitation,  and  so  the  10,613  acres  of  this  soil  are 
in  capability  unit  VIs-1. 

Hagerstown  very  rocky  silt  loam,  15  to  45  percent 
slopes,  moderately  eroded  (HgE2). — Because  erosion  has 
done  little  damage,  this  steep  soil  is  suitable  for  pasture 


WASIIINC'ION   COUXTV,  MAHVLAND 


if  it  is  ("ii-criilly  iii,iiKi<:t'(l  iiiid  <ir;izi ii;;-  is  liinilcd.  'I'lui 
1,»)S7  acres  arc  in  caijahilily  iinil  \'Is  1. 

Haserstown  very  i<Kky  silty  clay  loam,  to  15  per- 
cent slopes,  moderately  eroded  (HhC2).-  This  cxlciisix c 
ami  I'.xccllt'iit  soil  makes  vciy  <j:()<)(l  iH'rmaiuMil  ))as(ui'(>, 
al(li()ii<rli  it  is  loo  rocUy  for  normal  cultivation.  Tlici'e 
are  S,;{71  acros,  in  (•a|)al)ility  unit  \'ls  1. 

Haserstown  very  rocky  silty  clay  loam,  8  to  15  per- 
cent slopes,  severely  eroded  (HhC3). — Krosiou  lias  1)ihmi 
so  active  on  (his  very  roci'Cy  soil  tliat  its  iisorulness,  even 
t'oi'  ])astuie,  has  hir<iely  been  destroyed.  The  soil  can  fur- 
nish some  \ery  limited  oraziuii-,  hut  its  best  use  would  be 
for  woodland.    Thei-e  aiv  acres,  in  capabililN'  unit 

VI  Is  1. 

Hagerstown  very  rocky  silty  clay  loam,  15  to  45  per- 
cent slopes,  moderately  eroded  (HhE2). — The  slopes  of 
this  very  rocky  soil  are  too  <rreat  for  any  more  intensive 
use  than  pasture.  (lood  (jrazin*);  can  be  maintained  with 
pro})er  management.  Tlie  ()21  acres  are  in  capabilitv  unit 
VIs-1. 

Hagerstown  very  rocky  soils,  45  to  55  percent  slopes 

(HkF). — Tliese  are  tlie  steepest  very  rocky  soils  of  the 
Ha«ierst()wn  series.  There  has  been  little,  if  any,  erosion 
because  most  areas  have  remained  in  woodland  with 
little  or  no  disturbance.  This  group  of  soils  should  re- 
main in  forest.  There  are  107  acres,  in  capability  unit 
VIIs-1. 

Hagerstown,  Corydon,  and  Duffield  very  rocky  silt 
loams,  0  to  3  percent  slopes  (HIA). — This  mappina'  unit 
consists  of  very  rocky  soils  of  the  three  series  named, 
wherever  they  occur  in  nearly  level  positions.  Rockiness 
prevents  cultivation,  but  it  also  may  help  check  erosion, 
and  none  of  these  areas  have  been  appreciably  eroded. 
These  are  excellent  soils  for  pasture  or  woodland,  and, 
wherever  they  are  kept  in  permanent  vegetation,  they 
slioidd  not  deteriorate  in  any  way.  There  are  42-1  acres, 
in  capability  unit  Vs-1. 

Hagerstown  and  Duffield  silt  loams,  25  to  45  percent 
slopes,  moderately  eroded  (HmE2). — This  map])ing  unit 
contains  silt  loams  of  both  the  Hagerstown  and  Dufheld 
series.  The  soils  are  so  steep  that  they  sliould  not  be 
cultivated.  There  are  149  acres  in  capal)ility  unit  VIe-1. 

Hazel  Series 

The  Tlazel  series  consists  of  very  shallow,  skeletal  soils 
on  hard,  slaty  or  phyllitic  quartzite.  The  soils  occur  only 
on  excessively  drained,  rolling  to  steep  uplands,  mostly 
in  the  area  west  of  Elk  Ridge  and  just  north  of  Harpers 
Ferry.  They  are  associated  with  soils  of  the  Chandler 
series,  but  tliey  are  nnich  shallower  than  those  soils  and 
have  only  very  sliglit  horizonation  that  is  the  result  of 
soil-forming  ])rocesses. 

Thougli  the  Hazel  soils  are  thin  and  dnmghtj',  some 
of  the  more  nearly  le\  el  areas  can  be  used  for  crops.  There 
is  little  farming,  however,  on  these  soils.  The  steeper 
areas  are  mostly  in  forest. 

Profile  of  Hazel  cliaimery  silt  loam,  0  to  10  percent 
slopes,  moderately  eroded,  in  a  forested  area  just  west 
of  Harpers  Ferry  Road,  1  mile  south  of  its  intersection 
with  Hoffmaster  Road : 

Ai     0  to  1  inch:  black  (lOYR  2/1)  chaiinery  silt  loam ;  moderate, 
medium,  crumb  structure;  soft  to  very  slightly  hard 


when  dry,  very  friable  when  inoiwl,  and  slightly  sticky 
and  sligiilly  i)lastic  when  wet;  roots  abundant;  10  to 
'M)  i)crcenl  slaty  fragments  of  i)liyllit(;;  Klixhtly  acid; 
clear  to  abruj)!,  wavy  boinidary;  \\(}r'm>i\  is  Ji  inch  to 
\'i  inches  thick 

(',  I  to  7  inches:  brownish-yellow  ( l()\  R  0/0),  very  channcry, 
lisht  silt  loam;  weak  to  nioderat(!,  fiiU!,  siiban^ular 
blocky  structure;  slinht  ly  hard  when  flry,  very  friable 
when  moist,  slinlitly  plastic  and  moderately  sticky 
when  wet ;  roots  fairly  plentiful;  40  to  50  percent  phyl- 
litc  franmeiits;  this  layer  is  only  ])artially  develoi)ed 
toward  a  true  H  horizon;  slightly  acid;  gradual,  irr<'g- 
ular  boundary;  horizon  is  4  to  10  inches  thick. 

C,  7  to  24  inches:  light  yellowish-brown  (10Y1{  0/4)  mass  of 
j)artially  decomposed  to  hard  j)hyllit(!  fragments;  in- 
herited laminar  structure;  slightly  liarfi  wht-n  dry, 
friable  to  firm  when  moist,  with  hue  material  moder- 
ately j)lastic  and  moderately  sticky  when  wet;  a  few 
woody  roots;  80  to  90  percent  stone  fragments,  and 
10  to  20  percent  fine  material;  strongly  acid;  abrupt, 
irregular  to  broken  boundary;  horizon  is  10  to  20 
inches  thick. 

Dr  24  inches  -f :  hard,  gray,  greenish-gray,  and  yellowish- 
gray  phyllite. 

There  may  be  fine  mica  particles  tliroughout  the  ])ro- 
file.  In  some  places  there  is  a  very  thin  layer,  resembling 
a  true  subsoil,  between  the  Ai  and  Ci  horizons.  There  are 
occasional  stones,  boulders,  and  outcropping  ledges  of 
phyllite.  In  numy  places  the  soil  blends  with  the  some- 
what deeper  tind  better  developed  soils  of  the  Chandler 
series. 

Hazel  channery  silt  loam,  0  to  10  percent  slopes,  mod- 
erately eroded  (HnB2). — This  soil  has  (he  ])rofi]e  described. 
It  includes  the  better  areas  of  Hazel  channery  silt  loam. 
Slope  is  gentle  and  erosion  has  been  moderate,  but,  be- 
cause of  its  droughty  nature,  the  soil  is  severely  limited 
in  use.  Some  crops  may  be  grown  or  pastures  developed, 
but  they  will  be  affected  by  drought  iji  dry  weather.  The 
1,438  acres  are  in  capability  unit  IIIs-2. 

Hazel  channery  silt  loam,  10  to  20  percent  slopes, 
moderately  eroded  (HnC2). — This  soil  is  steep  enough  so 
that  the  hazard  of  erosion  is  of  more  significance  than  the 
droughtiness.  Erosion  has  not  yet  been  severe,  because 
most  of  the  areas  remain  in  forest.  If  cleared,  the  soil 
cotdd  be  cultivated  safely  only  with  great  care,  in  A"ery 
long  rotations  with  sod  crops.  There  are  1,856  acres,  in 
capability  miit  IVe-32. 

Hazel  channery  silt  loam,  10  to  20  percent  slopes, 
severely  eroded  (HnC3l. — This  soil  is  so  thin  and  erosion 
has  l)een  so  severe  that  continued  cropping  Avould  be 
hazardous.  4'he  soil  miglit  be  suitable  for  orchards  if 
well  managed  and  protected,  particularly  if  water  for 
irrigation  were  available.  Otherwise,  it  is  best  suited  to 
forests  or  to  limited  grazing.  The  202  acres  are  in  capa- 
l)ility  unit  VIe-3. 

Hazel  channery  silt  loam,  20  to  30  percent  slopes, 
moderately  eroded  (HnD2). — Slope  and  shallowness 
strongly  limit  the  usefulness  of  this  soil.  The  soil  might 
be  used  for  very  limited  grazing,  or  possibly  for  well- 
sodded  and  well-managed  orchards;  otherwise,  it  should 
renuiin  in  forests.  It  occupies  1,095  acres  and  is  in  capa- 
bility unit  Vle-:^. 

Hazel  channery  silt  loam,  20  to  30  percent  slopes, 
severely  eroded  lHnD3). — There  are  124  acres  of  this  soil. 
The  areas  are  so  steep  and  so  severely  eroded  that  they 
should  not  be  used  for  crops  or  for  grazing,  but  for 


34 


SOIL   SUR^"EY   SERIES    195!),    NO.  17 


woodland  and  wildlife.  The  soil  is  in  capahilitv  nnit 
Vire-3. 

Hazel  channery  silt  loam,  30  to  45  percent  slopes 

(HnE). — The  sh)pes  of  this  lliin,  ch'ouf^hty  soil  ai-e  so  <i-reat 
that  neither  cnltivation  nor  pasture  shouhl  be  attempted. 
The  soil  is  almost  entirely  in  woodland  and  should  re- 
main so.  There  are  210  acres,  in  capability  unit  VIle-3. 

Highfield  Series 

The  Ilighfield  series  consists  of  deep,  well-drained  soils 
that  were  developed  from  the  same  materials  as  soils  of 
the  Fauquier  and  the  Myersville  series.  These  materials 
are  the  weathered  products  of  metabasalt,  a  rock  locally 
known  as  greenstone.  The  Highfield  soils  occur  on  moun- 
tains and  on  high  intermountain  or  valley  slopes.  They 
are  yellowish  brown  to  brown  and  differ  from  the  Myers- 
ville soils  of  the  valleys  in  being  much  less  well  devel- 
oped and  somewhat  weaker  in  color.  They  are  not  so  red 
as  the  Fauquier  soils. 

Most  areas  of  the  Highfield  soils  are  stony  and  are 
cliiefly  in  forest.  Nonstony  areas  can  be  used  for  crops 
because  they  are  closely  associated  with  more  stony  soils; 
however,  many  of  these  areas  are  still  in  forest.  The  High- 
Held  soils  are  fairly  extensive,  chiefly  on  South  Mountain 
and  Elk  Ridge. 

Profile  of  Highfield  very  stony  loam,  0  to  5  percent 
slopes,  in  a  forested  area  100  yards  off  Ritchie  Road, 
miles  southwest  of  Fort  Ritchie : 

Ai  0  to  3  inches:  very  dark  gray  (lOYR  3/1),  very  stony, 
heavy  loam;  moderate,  fine,  crumb  structure:  soft  when 
dry,  loose  or  very  friable  wh(>n  moist,  slightly  plastic 
and  very  slightly  sticky  when  wet;  roots  abundant; 
strongly  acid;  aljrupt,  wavy  bovuidary;  horizon  is  1 
to  3  inches  thick. 

A2  3  to  8  inches:  yellowish-brown  (lOYR  5/4),  very  stony, 
heavy  loam;  weak,  coarse,  granular  structure;  slightly 
hard  when  dry,  friable  when  moist,  and  moderately 
plastic  and  slightly  sticky  when  wet;  roots  plentiful; 
many  pores,  mostly  fine  and  medium;  contains  some 
fragments  and  small  chips  of  metabasalt  or  greenstone; 
strongly  acid;  clear  to  abrupt,  wavy  boundary; 
horizon  is  4  to  7  inches  thick. 

Bi  8  to  20  inches:  dark  yellowish-brown  (lOYR  4/4),  very 
stony  silt  loam;  moderate,  medium,  subangular 
blocivy  structure;  slightly  hard  when  dry,  friable  when 
moist,  and  moderately  plastic  and  moderately  sticky 
when  wet;  many  woody  but  few  fibrous  roots;  many 
fine  and  medium  pores:  some  greenstone  fragments; 
strongly  acid;  gradual,  wavy  to  irregular  boundary; 
horizon  is  10  to  17  inches  thick. 

B2  20  to  36  inches:  .strong-brown  (7.5Y'R  5/6),  very  stony, 
light  silty  clay  loam;  moderate  to  .strong,  medium, 
subangular  blocky  structure;  moderately  hard  when 
dry,  somew-hat  firm  when  moist,  and  plastic  and 
moderately  sticky  when  wet;  very  few  roots;  some 
medium  and  many  fine  pores;  discontinuous,  self- 
colored  clay  skins;  some  greenstone  fragments;  very 
strongly  acid;  gradual,  irregular  boundary;  horizon 
is  12  to  20  inches  thick. 

C  36  to  52  inches:  yellowish-brown  (lOY'R  5/8)  very  stony 
loam;  inherited  weak,  coarse,  laminar  structure;  hard 
when  dry,  moderately  firm  when  moist,  and  mod- 
erately plastic  and  slightly  sticky  when  wet;  no  visible 
roots;  60  to  80  percent  partially  decomposed  to  hard 
fragments  and  stones;  strongly  acid;  abrupt,  irregular 
to  broken  boundary;  horizon  is  10  to  30  inches  thick. 

Dr  52  inches+  ;  bedrock  of  massive  to  platy  metabasalt  with 
many  white  quartzite  impurities. 

In  some  places  the  upper  subsoil  is  more  brown  (less 
yellow)  than  that  described  in  the  typical  profile.  Most 


areas  are  very  stony,  and  outcrops  and  ledges  are  fairly 
common.  Because  of  the  dominant  stoniness,  the  ])rofile 
of  tliis  .soil  may  be  eitlier  .shallower  or  deeper  than  tlie 
j)r()lile  described. 

Highfield  gravelly  loam,  0  to  5  percent  slopes  (HoB).— 
This  soil  has  a  profile  like  the  one  described,  except  that 
there  are  only  occasional  stones  on  or  in  the  soil.  In 
places  there  are  small  fragments  of  greenstone  and  many 
angular  fragments  of  white  quartzite  gravel  that  was  an 
imi)urity  in  the  parent  rock.  This  .soil  makes  u])  the 
more  useful  areas  of  the  Highfield  series.  Because  of 
gentle  slope  and  freedom  from  ei'osion,  the  soil  is  in 
ca))abilily  unit  J— 1.  There  are  (w  acres. 

Highfield  gravelly  loam,  5  to  10  percent  slopes,  mod- 
erately eroded  (HoB2). — There  has  been  active  erosion  on 
most  areas  of  this  sloping  soil  but  serious  damage  in 
only  a  few  places.  There  are  315  acres,  in  capability  unit 
lie— 4;  the  more  severely  eroded  areas  should  be  treated 
like  the  soils  in  capability  unit  llIe-4. 

Highfield  gravelly  loam,  10  to  20  percent  slopes,  mod- 
erately eroded  (HoC2). — Although  erosion  has  not  been 
severe  on  this  soil,  the  slopes  are  sucli  that  the  hazard 
of  erosion  is  great.  The  soil  is  in  capability  unit  IlIe-4. 
There  are  212  acres. 

Highfield  gravelly  loam,  20  to  35  percent  slopes,  mod- 
erately eroded  (HoE2). — This  soil  is  so  strongly  sloping 
that  cidtivation  must  be  limited  to  oidy  occasional  tilled 
crops,  sod  crops  such  as  hay,  or  sodded  orchards.  The 
78  acres  are  in  capability  unit  lVe-3. 

Highfield  very  stony  loam,  0  to  5  percent  slopes 
(HpB). — This  soil  has  the  profile  described  as  representa- 
tive of  the  series.  It  is  so  stony  that  cultivation  should 
not  be  attempted.  The  soil  makes  excellent  pastureland, 
however,  and  woodland  management  should  be  econo- 
mically feasible  and  not  especially  difficidt.  There  are  44 
acres.  The  soil  is  in  capability  unit  Vs-2. 

Highfield  very  stony  loam,  5  to  30  percent  slopes 
(HpD). — This  soil  is  strongly  sloping,  but  it  is  suitable  for 
pasture  if  the  grazing  is  limited  and  well  managed.  Tim- 
ber operations  will  be  more  difficult  but  should  be  eco- 
nomically feasible.  There  are  2,123  acres.  The  soil  is  in 
capability  unit  VIs-2. 

Highfield  very  stony  loam,  30  to  45  percent  slopes 
(HpE). — This  soil  is  so  stony  and  steep  that  it  should  be 
kept  in  forest.  Timber  operations  will  be  difficult,  but 
woodland  is  the  best  use.  The  soil  is  in  capability  unit 
VIIs-2.  It  occupies  470  acres. 

Holston  Series 

The  Holston  series  consists  of  deep,  well-drained,  acid, 
brown  soils  on  very  old  river  terraces.  The  materials  in 
which  the  Holston  soils  have  been  developed  are  old  al- 
luvial deposits,  which  were  brought  by  streams  from 
areas  of  acid  sandstone  and  shale.  The  Holston  soils 
are  on  terraces  of  the  Potomac  River,  mostly  between 
Four  Locks  and  Millstone.  They  are  on  the  same  terraces 
as  the  red,  well  drained  "Waynesboro  soils,  and  also  the 
brown,  moderately  well  drained  Monongahela  soils,  which 
contain  a  siltpan. 

The  Holston  soils  are  fairly  extensive.  Some  areas  are 
still  in  forest,  but  most  areas  have  been  cleared  and 
are  used  for  general  crops  or  pasture. 


vvAsm.\(;i()\'  corxiv,  aiauvland 


35 


Pi-()liU>  of  IIolsloii  sill  loam,  0  <o  l)  pcrconl  slopes,  in 
a  I'oiTslod  area  jusl  oil'  (Jarrison  Hollow  Koad,  about 
cililil -tendis  of  a  mile  south  of  its  iiilorsoct ion  with  State 
Koad  No.  ;")(): 

A,  0  to  2  inches:  very  ilurk  Kniyish-hrowii  (lOYR  3/2),  Unlit 
silt  loam;  inodcralc,  fine,  criiml)  st nift tire ;  soft  to 
.siinlitly  hard  when  dry,  very  friable  when  moist,  and 
slightly  |)lastic  but  nonsticiiy  wlien  wet;  roots  al)un- 
(lant;  strongly  acid;  abru])t,  wavy  boundary;  hori- 
zon is  1  to  3  inches  thick. 

A2     2  to  9  inches:  dark  yellowish-brown  (lOYR  4/4)  silt  loam; 

moderate,  fine,  crumb  structure;  slightly  to  moder- 
ately hard  when  dry,  friable  when  moist,  and  slight  1\' 
plastic  and  slightly  sticky  when  wet;  roots  plentiful; 
many  fine  and  medium  and  some  large  pores;  very 
strongly  acid;  abrupt,  wavy  boundary;  horizon  is  4 
to  8  inches  thick. 

Bi  9  to  15  inches:  yellowish-brown  (lOYIl  5/6)  fine  gravelly 
silt  loam;  weak,  fine,  subangular  blocky  structure; 
moderately  hard  when  dry,  friable  when  moist,  and 
moderately  plastic  and  moderately  sticky  when  wet; 
roots  rather  few;  many  fine  and  medium  pores; 
strongly  acid;  dit^Fu.se  boundary;  horizon  is  4  to  7 
inches  thick. 

B21  15  to  24  inches:  brownish-yellow  (lOYR  6/6),  gravelly, 
heavy  silt  loam;  moderate,  medium,  subangular 
blocky  structure;  moderately  hard  when  dry,  friable 
to  moderately  firm  when  moist,  and  moderately 
plastic  and  moderately  sticky  when  wet;  roots  few; 
many  fine  and  common  medium  pores;  strongly  acid; 
diffuse  boundarv;  horizon  is  8  to  12  inches  tliick. 

B22  24  to  37  inches:  brownish-yellow  (lOYR  6/6),  gravelly, 
silty  clay  loam;  strong,  medium,  blocky  and  sul)- 
angular  blocky  structure;  hard  wlien  dry,  firm  when 
moist,  and  plastic  and  sticky  when  wet;  very  few 
roots;  nearly  continuous,  self-colored  clay  skins  on 
aggregates  and  in  pores;  very  strongly  acid;  clear, 
wavy  boundary;  horizon  is  10  to  20  inches  thick. 

C  37  to  42  inches  +  :  variegated  yellowish-brown  and  yellow 
(lOYR  5/6  and  7/6),  very  gravelly,  light  sandy  clay 
loam;  weakly  stratified;  hard  when  dry,  firm  when 
moist,  and  plastic  and  sticky  when  wet;  a  very 
few  roots  in  upper  portion;  a  very  few  brownish-yellow 
(lOYR  6/6)  clay  flows;  extremely  acid. 

In  some  places  the  surface  layer  and  subsoil  are 
gravelly;  the  substratum  is  gravelly  everywhere.  The 
siu-face  layer  may  be  sandy  loam,  loam,  or  silt  loam.  In 
some  places  the  lower  subsoil,  just  above  the  substratiun, 
may  be  slightly  mottled  and  weakly  platy  in  structtire. 

Holston  gravelly  loam,  0  to  3  percent  slopes  (HrA). — 
This  soil  has  a  profile  like  the  one  described,  except  that 
the  surface  layer  is  less  silty  and  much  more  gravelly. 
This  is  a  good  soil,  suitable  for  nearly  all  crops,  and  not 
subject  to  any  particular  hazard.  Tlie  439  acres  are  in 
capability  unit  I— t. 

Holston  gravelly  loam,  0  to  8  percent  slopes,  mod- 
erately eroded  (HrB2). — This  soil  occupies  1,395  acres.  In 
some  areas  the  surface  layer  is  gravelly  silt  loam.  Because 
of  the  risk  of  erosion,  the  soil  is  in  capability  unit  Ile-i. 

Holston  gravelly  loam,  8  to  15  percent  slopes,  mod- 
erately eroded  (HrC2).— There  are  588  acres  of  this  slop- 
ing, modei-ately  eroded  soil.  Tlie  soil  can  be  cultivated 
safely  with  tlie  good  management  practices  applicable  to 
its  capability  unit  IIIe-4. 

Holston  gravelly  loam,  15  to  25  percent  slopes,  mod- 
erately eroded  (HrD2). — Tliis  soil  includes  small  ai-eas  of 
silt  loam  and  of  gravelly  sandy  loam,  too  small  to  be 
mapped  as  different  soils.  Cultivation  must  be  strongly 
limited  and  the  soil  A-ery  carefully  managed.  The  118 
acres  of  this  soil  are  in  capability  unit  IVe-3. 


Holston  gravelly  loam,  8  to  25  percent  slopes,  .se- 
verely eroded  (HrD3).  Tlicse  areas,  makiiig  19  ai-res, 
are  too  scNcrcly  ciodcd  for  further  <ult  i  vat  ion.  After 
establishing  sod,  however,  they  will  pi-odue(>  good  p(!r- 
manent  pasture  or  an  occasional  hay  i  rop.  I'lic  soil  is 
in  capability  unit  Vie  -2. 

Holston  gravelly  loam,  25  to  45  percent  slopes,  mod- 
erately eroded  (HrE2). — There  are  70  acics  of  this  .soil, 
which  is  too  steep  to  be  cultivated  safely.  The  soil  can 
be  used  foi'  grazing,  for  occasional  hay  crops,  or  for 
woodland.  It  is  in  capability  unit  Vre-2. 

Holston  gravelly  sandy  loam,  .3  to  8  percent  slopes 
(HsB). — The  prolile  of  this  .soil  differs  somewhat  fi-om  the 
one  that  was  described  as  representative  of  the  series. 
The  surface  layer  is  sandy  loam,  and  the  soil  contains  a 
fairly  large  amount  of  waterworn  gravel.  The  sand  and 
gravel  make  the  soil  somewhat  di'oughfy  :ind,  hence,  low 
in  ]>roductivity.  The  115  acres  of  this  soil  are  in  capa- 
bility unit  lIs--2. 

Holston  gravelly  .sandy  loam,  3  to  15  percent  slopes, 
moderately  eroded  (HsC2). — On  these  slopes  control  of 
erosion  is  a  more  important  management  problem  than 
sandiness  of  the  soil.  This  soil  occupies  153  acres.  It 
is  in  capability  unit  IIIe-5. 

Holston  gravelly  sandy  loam,  8  to  15  percent  slopes, 
severely  eroded  (HsC3). — This  soil  has  been  so  severely 
eroded  that  its  use  for  crops  is  strongly  limited.  Very 
careful  conservation  measures  are  required  for  safe  cul- 
tivation. The  soil  occupies  50  acres.  It  is  in  capability 
unit  lVe-5. 

Holston  silt  loam,  0  to  3  percent  slopes  (HtA). — The 
proHle  of  this  soil  is  the  one  described  in  detail  for  the 
Holston  series.  It  is  a  very  good  soil,  subject  to  very 
little  hazard  of  any  kind  if  well  managed.  The  224  acres 
are  in  capability  unit  I— f. 

Holston  silt  loam,  3  to  8  percent  slopes,  moderately 
eroded  (HtB2). — The  slope  of  this  soil  and  the  erosion  that 
has  occurred  make  simple  conservation  measures  neces- 
sary for  continited  cultivation.  This  soil  occupies  666 
acres.  It  is  in  capability  unit  lie -4. 

Holston  silt  loam,  8  to  15  percent  slopes,  moderately 
eroded  (HtC2). — These  208  acres  on  strong  slopes  must  be 
carefully  managed  for  safe  use  and  production.  The  soil 
is  in  capability  luiit  Ille— 4. 

Huntington  Series 

The  Huntington  series  consists  of  deep,  well-drained 
soils  on  flood  plains  along  rivers  and  streams.  The  soils 
are  composed  of  fine  materials  washed  originally  from 
areas  in  which  tlie  soils  were  derived  from  or  strongly 
influenced  by  limestone.  Except  for  some  modification 
of  the  surface  layer  by  organic  matter,  these  soils  show 
practically  no  development  of  horizons;  hence,  the}^  have 
a  uniform  or  a  stratified  profile  and  no  B  horizon.  The 
Huntington  soils  are  associated  on  the  flood  plains  chiefly 
with  the  moderately  well  drained  Lindside  soils  and  the 
poorly  drained  and  very  poorly  drained  Melvin  and 
Dunning  soils. 

The  Huntington  soils  are  excellent  for  most  kinds  of 
farming.  Although  they  originated  by  overflow  and  over- 
washing,  they  are  not  subject  to  very  frequent  or  very 
prolonged  flooding.  They  are  used  for  most  crops. 


36 


SOIL  SUKVKY   SERIES    1959,  NO.  17 


l*i-()Hle  of  a  Hunt  in<>(()ii  silt  loain  in  a  cult  i\  at('(l  area  on 
the  Hood  plain  of  Anticlani  Creek,  one-fourth  mile  north- 
west of  Leitersl)ur<:- : 

A„    0  to  7  inches:  diirk  grayish-brown  (lO'S'R  4/2)  .sill  loam; 

moderate,  coarse,  crumb  structure;  moderately  hard 
when  dry,  friable  when  moist,  and  slifjlitly  i)lastic  and 
slightly  sticky  when  wet;  roots  abundant  ;  many  worm 
ciiannels;  neutral;  clear,  smooth  boundary  as  a  re- 
sult of  i)lowing;  horizon  is  6  to  8  inches  thick. 

Ci  7  to  38  inches;  dark-brown  (7.5YIi  4/4)  silt  loam;  com- 
pound, very  weak,  medium,  jjlaty  and  nu)derate,  fine, 
granular  structure;  hard  when  dry,  friable  to  some- 
what firm  when  moist,  and  moderately  plastic  and 
slightly  sticky  wlien  wet;  roots  plentiful  in  U])])er  jiart ; 
many  fine  and  iiu'dium  ])ores  and  sonu'  worm  chan- 
nels; neutral;  very  gradual,  smooth  boundary;  horizon 
is  30  to  40  inches  thick. 

Co  38  to  48  inches  +:  brown  to  dark-brown  (7.5YII  4/2), 
slightly  gritty  silt  loam;  common,  fine  sjjecks  of  dark 
gray  and  strong  brown;  weak,  coarse,  platy  structure; 
hard  when  dry,  firm  and  somewhat  brittle  when  moist, 
and  moderately  plastic  and  moderately  sticky  when 
wet;  a  very  few  roots;  neutral;  grades  with  depth  to 
stratified  materials  that  are  generally  gravelly  or 
sandy,  or  bot  h. 

Waterworn  o;i'avel  frao;inents  may  be  ])resent  in  any 
})art  of  the  [jroHle,  hut  in  the  nono'ravelly  soils  tliey  are 
confined  mostly  to  the  lower  substratum.  Depth  to  the 
C2  liorizon  varies  considerably  and  may  be  several  feet 
in  some  places.  Color,  es})ecially  of  the  surface  layer, 
varies  somewliat  ;  in  some  places  it  is  brown  or  slio-htly 
reddish  I)r()wn. 

Huntington  fine  sandy  loam  (Hu). — This  .soil  is  like 
Tluiit iniiton  silt  loam,  except  that  the  entire  profile,  and 
part  ictdarly  the  surface  layer,  contains  less  silt  and  chiy 
and  much  more  fine  sand.  This  is  an  excellent  soil,  and 
it  is  suited  to  all  the  common  crops.  A  few  acres,  which 
cotdd  not  he  separated  on  the  map,  may  be  (X'casionally 
or  frecpiently  dama<:ed  by  floodino:.  The  croppinjr  sy.stem 
there  should  be  adjusted  to  the  flood  hazard.  Most  slopes 
ai'e  less  than  ;?  percent,  but  in  a  few  places  the  slope  is 
as  o;reat  as  8  percent.  The  1,507  acres  of  this  soil  are  in 
capability  unit  1-6. 

Huntington  gravelly  loam  (Hv). — This  soil  is  like  Hunt- 
ino-ton  silt  loam,  except  that  the  surface  layer  is  less  silty 
and  the  entire  profile  contains  considerable  waterworn 
gravel.  This  is  an  excellent  soil,  suitable  for  all  of  the 
common  crops.  If  Hoodino'  is  a  prol)lem  on  any  area, 
the  management  of  this  land  should  l)e  adjusted  accord- 
ingly. Most  iireas  are  nearly  level,  but  some  slopes  are 
as  great  as  8  percent.  The  071  acres  of  this  soil  are  in 
capability  unit  1-6. 

Huntington  silt  loam  (Hw). — This  soil  has  the  profile 
that  was  described  as  representative  of  the  series.  It  is 
an  excellent  soil,  and  normally  has  practically  no  hazard 
to  limit  its  cultivation.  It  is  used  for  all  crops  of  the 
area,  and  is  especially  desirable  for  corn.  A  few  areas, 
which  could  not  be  separated  on  the  map,  may  l)e  oc- 
casionally or  fretjuently  affected  by  high  water.  Practically 
all  areas  are  nearly  level.  The  1,439  acres  of  this  soil 
are  in  capability  unit  1-6. 

Huntington  silt  loam,  local  alluvium  (Hx). — Tliis  soil 
I'esembles  Huntington  silt  loam,  except  that  it  does  not 
lie  on  true  flood  plains.  It  occupies  slight  depressions  in 
areas  of  soils  underlain  by  limestone,  and  lies  also  around 
drainage  heads  and  on  some  foot  slopes  within  the  same 
areas.  It  has  been  formed  by  the  deposit  of  fine  material 


that  was  washed  directly  down  from  surroimding  upland 
soils,  and  not  by  settlement  otit  of  floodwaters,  as  with 
the  Huntington  soils  of  the  flood  plains.  In  some  places 
the  substratum  is  slightly  finer  in  texture  than  the  surface 
layer,  showing  the  beginnings  of  i)rofile  development,  but 
this  is  exceptiontil. 

The  soil  is  extensive  and  important,  althotigh  generally 
in  small  areas.  There  are  4,811  acres,  most  of  which  are 
nearly  le\el  oi-  oidy  very  gently  sloi)ing.  Some  slopes, 
however,  are  as  great  as  8  percent.  This  highly  produc- 
tive soil  is  used  for  till  pur])f)ses  and  is  in  capid)ilitv  unit 
1-6. 

Laidig  Series 

The  Laidig  .series  consists  of  deep,  well-drained,  acid 
soils  that  were  developed  on  old  rockslides  or  other  col- 
luvial  deposits  of  .sandstone,  quartzite,  and  (K'casionally 
some  shale.  The  Laidig  soils  are  characterized  by  a  deep 
and  very  thick,  i)laty  fragipan  in  the  lower  subsoil.  The 
fragipan  layer,  however,  apparently  does  not  restrict 
drainage  of  the  soil. 

It  has  been  noted  under  the  Edgemont  seiies  that  the 
Kdgemont  and  Laidig  soils  are  in  many  places  very  closely 
as.sociated  and  were  mapped  together  in  undifferentiated 
units.  The  Laidig  soils  were  also  niap))ed  by  themselves. 

Tjike  the  Edgemont  soils,  the  Lsiidig  soils  ai'e  not  highly 
prodtict i ve,  but  they  are  suited  to  most  crops  and  are  used 
for  orchards  ami  berry  crops. 

Profile  of  Laidig  gravelly  loam,  8  to  15  percent  slopes, 
moderately  eroded,  in  a  forest  just  off  Woodmont  Road, 
high  on  the  slopes  of  Tonoloway  Ridge  between  Wood- 
mont and  Cohill: 

Aji  0  to  1/2  inches:  black  (N  2/0),  gravelly,  light  loam;  weak, 
very  fine,  granular  structure;  soft  when  dry,  loose 
or  very  friable  when  moist,  and  nonijlastic  and  non- 
sticky  when  wet;  roots  plentiful;  strongly  acid;  clear, 
irregular  boundary;  horizon  is  1  to  3  inches  thick. 

A12  V/i  to  3  inches:  grayish-brown  (2.5Y  5/2),  gravelly,  very 
light  loam;  single  grain;  soft  to  very  slightly 
hard  when  dry,  very  friable  when  moist,  and 
nonplastic  and  nonstieky  when  wet;  roots  fairly 
plentiful;  very  strongly  acid;  clear,  irregular  bound- 
ary; horizon  is  1  to  3  inches  thick. 

A2  3  to  14  inches:  light  yellowish-browu  (lOYR  0/4),  grav- 
elly, very  light  loam  or  heavy  sandy  loam;  moder- 
ate, coarse,  crumb  structure;  slightly  hard  when  dry, 
friable  when  moist,  and  slightly  plastic  and  very 
slightly  sticky  when  wet;  roots  rather  few;  very 
strongly  acid;  clear,  irregular  boundary;  horizon  is 
8  to  12"  inches  thick. 

Bi       14  to  18  inches:  pale-brown  (lOYR  6/3)  gravelly  loam; 

weak,  medium,  subangular  blocky  and  weak,  fine, 
granular  structure;  slightly  hard  when  dry,  friable 
when  moist,  and  slightly  plastic  and  very  slightly 
sticky  when  wet;  roots  few;  abundant  fine  and 
medium  and  a  few  large  pores;  this  horizon  has 
some  of  the  characteristics  of  an  old  surface  layer 
that  has  been  buried  and  is  transitional  between 
the  surface  layer  and  the  true  subsoil;  strongly  acid; 
clear,  irregular  boundary;  horizon  is  3  to  5  inches 
thick. 

B2,  18  to  38  inches:  reddish-yellow  (5YR  6/8),  heavy  fine 
sandy  loam  containing  very  little  silt;  compound, 
very  weak,  medium,  platy  and  weak,  fine,  irregular, 
subangular  blocky  structure;  hard  and  brittle  when 
dry,  friable  or  firm  and  slightly  brittle  when  moist, 
and  slightly  plastic  and  slightly  sticky  when  wet;  a 
few  roots  in  upper  part;  abundant  fine  pores;  con- 
tains many  small  inclusions  of  the  B22m  material 


WASHINGTON    COUNTY,   MAIO  LAM) 


37 


(icscrihed  t)olow;  very  str()iinl>'  acid;  ck'ar  to  al)ru|)t, 
wavy  to  irregular  houiidary;  horizon  is  18  to  2(1 
inclies  thick. 

R,2,„  3S  to  ».)()  inclics  I  ;  rod  (2.5YR  4/8  or  lOR  4/8),  ligiil 
fine  sandy  chiy  loam  containing  very  little  silt; 
moderately  strong,  coarse,  ])laty  stnicture,  crushing 
under  pressure  to  finer  platy  lenses;  very  compact  ; 
very  hard  and  brittle  when  dry,  firm  and  brittle 
when  moist,  and  moderately  plastic  and  moderately 
sticlvy  wlien  wet;  no  roots;  conuuon  fine  pores, 
mostly  horizontal;  this  fragii)an  is  a  very  compact 
clay -sand  mixture  with  practically  no  silt  and  a 
nolal)le  absence  of  clay  skins;  upper  part  contains 
some  inclusions  of  H21  horizon  material;  very 
strongly  or  extremely  acid. 

Some  horizons  may  be  very  thin  or  absent;  tliis  is 
particiUarly  true  of  the  B,  liorizon,  and,  in  some  phices, 
of  the  Ai^.  liorizon.  The  lower  subsoil  is  in  some  j)laces 
less  red  tlian  desci-ibed  but  is  everywhere  compact  and 
platy.   Stones  and  boulders  are  ])resent  in  some  areas. 

Laidig  gravelly  loam,  0  to  3  percent  slopes  (La A). — 
This  is  the  nearly  level  and  least  stony  soil  of  the  Laidig 
series.  The  profile  is  like  the  one  described.  Although 
this  soil  is  gravelly,  strongly  acid,  and  not  highly  produc- 
tive, it  can  be  cultivated  safely  with  ordinary  good  farm- 
ing methods.  The  110  acres  are  in  capability  unit  1-4. 

Laidig  gravelly  loam,  3  to  8  percent  slopes,  moder- 
ately eroded  (LaB2). — This  soil  occupies  l.i^Tls  acres. 
About  half  of  it  has  been  cleared  and  used  for  general 
crops  or  orchards.  Because  of  the  slope,  the  hazard  of 
erosion  is  a  definite  one.  The  soil  is  in  capability  unit 
Ile-t. 

Laidig  gravelly  loam,  8  to  15  percent  slopes,  mod- 
erately eroded  (LaC2). — A  profile  of  this  soil  was  de- 
scribed as  representative  of  the  series.  Because  of  tlie 
slope,  tliere  is  an  erosion  hazard,  and  the  1,574  acres  are 
in  capability  \init  Ille— 4.  About  46  acres  have  been 
severely  eroded ;  these  areas  should  have  special  treatment 
to  control  erosion. 

Laidig  gravelly  loam,  15  to  25  percent  slopes,  mod- 
erately eroded  (LaD2). — The  hazard  of  erosion  strongly 
limits  use  of  this  soil  for  cultivated  crops.  There  are  479 
acres  in  capability  unit  IVe-8.  Inchided  are  about  33 
acres  that  are  severely  eroded,  which  should  be  treated 
as  if  in  capability  unit  Vle-i^. 

Laidig  very  stony  loam,  8  to  25  percent  slopes  (LbD). — 
This  soil  has  many  stones  and  a  few  boulders  on  the  sur- 
face and  in  the  profile.  On  the  average,  about  50  percent 
of  the  surface  is  occupied  by  stones.  This  soil  is,  therefore, 
not  suited  to  cultivation,  but  it  can  be  used  to  some  extent 
for  grazing  or  can  be  left  in  woodland.  There  are  722 
acres,  in  capability  imit  YIs-2. 

Laidig  very  stony  loam,  15  to  45  percent  slopes, 
moderately  eroded  (LbE2). — This  soil  is  so  steep  and  stony 
that  grazing  is  not  practical.  Forests  should  be  main- 
tained and  cleared  areas  should  be  reforested.  The  soil 
occupies  110  acres  and  is  in  capability  unit  VIIs-2. 

Landisburg  Series 

The  Landisburg  series  consists  of  moderately  well 
drained,  gravelly  soils  on  the  foot  slopes  of  ridges  where 
there  are  colluvial  deposits  of  clierty  limestone  material. 
The  Landisburg  soils  have  some  degree  of  platy  structure 
throughout  their  profile  and  have  a  fine  and  very  dense, 
cherty  subsoil.  They  lie  below  areas  of  better  drained 


soils,  chiedy  of  the  l^llib(•|•  and  Frederick  .sei-ies,  which 
have  been  developed  direcdy  on  the  cluM'ty  limestone. 

The  Landisburg  soils  occur  in  the  weslei'ii  part  of  the 
county,  mostly  in  tlie  Elbow  Kidge  area.  They  are  not 
extensive,  nor  are  (hey  highly  productive.  They  need  in- 
tensive erosion  control  and  some  artifici;il  drainage  for 
full  use,  and  they  are  somewhat  difliciill  lo  manage. 

Profile  of  Tiandisbui'g  cherty  silt  loam,  3  to  8  percent 
slopes,  moderately  eroded,  in  a  forested  area  just  west 
of  Long  Hollow  Koad,  nine-tenths  of  a  mile  south  of  the 
Pennsylvania  State  line: 

Ai  0  to  3  inches:  very  dark  grayish  -  brown  (10  YR  3/2) 
cherty  silt  loam;  compound,  weak,  tliin,  jjlaty  and 
strong,  fine,  crumb  structure;  sliglitly  hard  when 
dry,  friable  but  slightly  tjrittle  when  moist,  and 
moderately  plastic  and  moderately  sticky  when  wet; 
roots  abundant;  strongly  acid;  clear  to  abrupt, 
wavy  boundary;  horizon  is  1  to  4  inches  thick. 

A2  3  to  9  inches:  yellowish-brown  (lOYR  5/4),  cherty, 
light  silt  loam;  compound,  weak,  thin,  platy  and 
moderate,  fine,  crumb  structure;  moderately  hard 
when  dry,  friable  but  slightly  brittle  when  moist, 
and  moderately  plastic  and  moderately  sticky  when 
wet;  roots  plentiful;  very  strongly  acid;  clear  to 
abrupt,  wavy  boundarv;  horizon  is  4  to  7  inches 
thick. 

Bi  9  to  12  inches:  brownish-yellow  ClOYR  6/6),  cherty, 
heavy  silt  loam;  compound,  weak,  medium,  platy 
and  moderate,  fine,  subangular  blocky  structure; 
moderately  hard  when  dry,  moderately  firm  and 
brittle  when  moist,  and  plastic  and  sticky  when 
wet;  roots  few;  very  strongly  acid;  clear,  wavy 
boundary;  horizon  is  3  to  5  inches  thick. 

B2tm  12  to  32  inches:  variegated,  about  75  percent  strong- 
brown  (7. SYR  5/6)  and  25  percent  yellowish-brown 
(lOYR  5/4),  cherty,  heavy  clay  loam;  com- 
pound, moderate,  coarse,  platy  and  strong,  medium, 
blocky  structure;  compact  and  dense;  hard  when 
dry,  firm  and  brittle  when  moist,  and  plastic  and 
sticky  when  wet;  practically  no  roots;  very 
strongly  acid;  clear,  wavy  boundary;  horizon  is  15 
to  24  inches  thick. 

Cg,„  32  to  42  inches  4- :  strongly  variegated  yellowish-brown, 
strong-brown,  and  olive-gray  (lOYR  5/4,  7.5YR 
5/8,  and  5Y  5/2)  cherty  silty  clay  loam  or  clay  loam; 
somewhat  gritty;  strong,  fine  to  medium,  platy 
structure;  very  hard  when  dry,  firm  and  brittle 
when  moist,  and  plastic  and  sticky  when  w^et; 
no  roots;  very  slowly  permeable;  very  strongly  acid. 

There  are  common  seepage  spots  or  vpet- weather  springs. 
At  sucli  places  the  fir.st  three  horizons  ai-e  darker  in  color 
and  thinner  than  in  the  typical  profile  described  and  the 
claypan  Batm  horizon  is  closer  to  the  surface.  There  are 
some  small  areas  of  cherty  loam  mixed  with  the  cherty 
silt  loam.  In  many  spots  the  surface  soil  is  quite  gritty, 
containing  some  medium  and  coarse  sand  and  very  fine 
gravel.  The  Landisburg  soils  are  rather  wet  and  slow  to 
warm  in  spring.  The  water  table  is  normally  fairly  deep, 
but  it  comes  close  to  the  surface  in  wet  w^eather. 

Landisburg  cherty  silt  loam,  3  to  8  percent  slopes, 
moderately  eroded  (LcB2). — This  soil  has  the  profile  that 
is  described.  Because  the  subsoil  is  tight,  runoff  is  very 
high.  Although  the  soil  is  only  moderately  well  drained, 
the  control  of  erosion  is  a  more  significant  problem  than 
drainage.  For  this  reason,  the  65  acres  of  this  soil  are  in 
capability  unit  IIe-13. 

Landisburg  cherty  silt  loam,  8  to  25  percent  slopes, 
moderately  eroded  (LcD2). — On  this  strongly  sloping  soil, 
the  erosion  hazard  is  great.  There  are  143  acres,  in  capa- 
bility unit  IIIe-13. 


38  SOIL  SURVEY   SIOKIES    1959,   NO.  17 


Laigent  Series 

Tlie  J^argeut  sei'ies  consists  of  moderately  well  drained 
soils  on  Hood  plains  and  in  depi-essions,  in  areas  of  acid, 
red  shale  and  sandstone.  The  Tjargent  soils  are  made 
up  of  alluvium  washed  mostly  from  soils  of  the  Calvin 
series.  Natural  draiiiaae  is  partially  retai'ded.  There  has 
been  a  very  slight  degree  of  soil  profile  (levelo])ment,  but 
not  enough  to  be  of  any  particular  significance. 

The  Largent  soils  are  not  extensive  and  are  used  mostly 
for  corn,  hay,  and  pasture.  Some  areas  are  still  in  wood- 
land. 

Profile  of  a  Largent  silt  loam,  in  a  foivsted  area  three- 
tenths  of  a  mile  west  of  State  Koad  No.  615,  and  one- 
half  luile  south  of  the  Pennsylvania  State  line: 

Ai  0  to  12  iiiclies:  dark  reddish-gray  (5YR  4/2),  light  silt 
loam  containing  a  nuticcablc  amount  of  very  fine 
sand;  very  weak,  fine,  grainilar  structure;  very 
slightly  hard  when  dry,  friable  when  moist,  and 
slightly  plastic  and  very  slightly  sticky  when  wet; 
roots  abundant;  slightly  acid;  gradual  t(j  clear,  wavy 
boundarv;  horizon  is  8  to  12  inches  thick. 

C,      12  to  25  inches:  dark  reddish-gray  (5YR  4/2)  silt  loam; 

weak,  very  fine,  platy  structure;  compact;  hard 
when  dry,  firm  and  somewhat  brittle  when  moist, 
and  moderately  plastic  and  moderately  sticky  when 
wet;  roots  plentiful  in  ujjper  portion;  many  fine  but 
few  large  pores;  medium  acid;  clear  to  abrupt,  wavy 
boundarv;  horizon  is  10  to  20  inches  thick. 
25  to  48  inches  +:  reddish-brown  (5YR  4/4),  heavy 
fine  sandy  loam;  about  15  i)ercent  medium  to 
coarse,  distinct  mottles  of  yellowish  red  (SYR  5/8), 
and  many  very  small  specks  of  indeterminate  gray; 
compound,  very  weak,  very  coar.se,  platy  and  weak, 
coarse,  blocky  structure;  very  hard  when  dry, 
moderately  firm  when  moist,  and  nonplastic  and 
nonsticky  when  wet;  no  visible  roots;  medium  acid. 

Although  the  only  mapping  unit  is  named  as  silt  loam, 
there  are  some  small  included  spots  of  fine  sandy 
loam.  Depth  to  the  mottled  Csg  horizon  ranges  from  about 
14  to  28  inches.  The  water  table  is  near  the  surface  for 
fairly  long  periods.  The  soil  is  rather  cold  in  spring, 
and  may  be  fiooded  for  brief  periods. 

Largent  silt  loam  (Le). — This  soil  lias  the  profile  that 
is  described.  Because  of  the  impeded  drainage,  the  soil 
was  placed  in  capability  unit  IIw-7.  A  few  areas  may  be 
frequently  covered  by  floodwaters.  Wherever  this  is  true, 
the  intensity  of  use  will  depend  on  the  frequency  and 
pattern  of  flooding.  There  are  157  acres  in  the  county. 

Leadvale  Series 

The  Leadvale  series  consists  of  moderately  well  drained 
soils  on  colhn  ial  deposits  that  consist  of  acid  shale  and 
sandstone  material  at  the  base  of  slopes.  In  Washington 
County  the  materials  have  accumulated  at  the  base  of 
sorne  slopes  of  soils  of  the  Berks,  Calvin,  and  Montevallo 
series.  The  Leadvale  .soils  are  in  widely  scattered,  small 
areas,  all  in  the  western  part  of  the  county. 

The  Leadvale  soils  are  suitable  for  most  crops,  but  are 
wet  at  certain  seasons  and  are  slow  to  warm  up  in  spring. 

Profile  of  Leadvale  gravelly  silt  loam,  3  to  8  percent 
slopes,  moderately  eroded,  in  a  cultivated  area  on  Long 
Hollow  Road,  just  north  of  the  entrance  of  the  Tonoloway 
Rod  and  Gun  Club: 

Ap  0  to  7  inches:  yellowish-brown  (lOYR  5/4)  gravelly  silt 
loam;  moderate,  medium,  crumb  and  weak  to  mod- 
erate, fine,  subangular  blocky  structure;  moderately 


hard  when  dry,  friable  when  moist,  anfl  moderately 
plastic  and  slightly  sti('ky  when  wet;  roots  abundant; 
gravel  is  mostly  fine,  consisting  of  lioth  sandstone 
and  shale;  strongly  acid;  clear,  smooth  to  wavy 
boundarv;  horizon  is  (>  to  8  inches  thick. 

H2,  7  to  22  inches:  yellowish-brown  (lOYR  5/4),  gravelly, 
light  silty  clay  loam;  moderate,  medium,  subangular 
blocky  structure;  hard  when  dry,  friable  to  firm 
when  moist,  and  plastic  and  sticky  when  wet;  roots 
fairly  |)lentiful;  many  fine  and  some  medium  pores; 
gravel  is  coarser  than  in  jjIow  layer;  very  strongly 
acid;  gradual,  wavy  to  irregular  boundary;  horizon 
is  10  to  16  inches  thick. 

B22m  22  to  'M>  inches:  light  olive-l)rown  (2.5Y  5/4)  gravelly 
and  cliannery  silty  clay  hjani;  about  20  percent  fine, 
prominent  mottles  of  strong  t)rown  (7.5YR  5/f)) ; 
compoimd,  weak,  medium,  platy  and  strong,  fine 
to  medium,  subangular  blocky  structure;  very  com- 
j)act;  hard  and  brittle  when  dry,  firm  and  brittle 
when  moist,  and  plastic  and  sticky  when  wet;  prac- 
tically no  roots;  very  slowly  permeable;  thin,  grayish 
silt  coatings  on  aggregates  in  upper  part;  this  is  a 
siltpan  or  fragii)an  layer;  very  strongly  acid;  clear, 
wav\-  boundary;  horizon  is  12  to  20  inches  thick. 

Cg  36  to  42  inches  +  :  i)luish-gray  (5Y  5/1  with  a  bluish  cast) 
chaimery  silty  clay  loam;  about  60  i)ercent  fine  and 
medium,  distinct  mottles  of  olive  and  olive  brown 
(5Y  5/4  and  2.5Y  4/4);  very  weak,  medium,  platy 
structure;  hard  when  dry,  firm  and  somewhat  brittle 
when  moist,  and  plastic  and  sticky  when  wet;  very 
slowly  permeable;  no  roots;  strongly  or  very  strongly 
acid. 

In  some  places  the  soil  is  rather  shallow,  with  residual 
material  or  bedrock  within  feet  of  the  surface.  In 
some  places  the  I^'-m  horizon  is  less  compact  than  that 
in  the  profile  described.  These  soils  tend  to  heave  in 
winter.  They  are  of  rather  low  fertility  but  are  fairly 
productive  of  some  crops  imder  good  management. 

Leadvale  gravelly  silt  loam,  0  to  3  percent  slopes 
(LgA). — This  nearly  level  soil  can  be  cultivated  without 
great  risk  of  erosion.  Surface  drainage  is  particularly 
slow,  and  the  soil  tends  to  be  wet  and  cold.  It  is  in 
capability  \imt  IIw-1.  There  are  49  acres. 

Leadvale  gravelly  silt  loam,  3  to  8  percent  slopes, 
moderately  eroded  (LgB2). — A  i)rofile  of  this  .soil  is  de- 
scribed. Tlie  slopes  are  moderate,  and  there  has  been 
some  erosion.  The  erosion  hazard  is  more  significant 
than  the  somewhat  impeded  drainage.  There  are  475 
acres.  The  soil  is  in  capability  unit  IIe-13. 

Leetonia  Series 

The  Leetonia  series  consists  of  excessively  drained,  ex- 
tremely acid,  stony  soils  on  coarse,  light-colored  sandstone. 
They  resemble  the  Dekalb  soils,  but  tliey  have  more  prom- 
inent horizons  and,  generally,  a  thicker  surface  layer.  In 
this  county  they  were  mapped  only  in  undifferentiated 
units  with  Dekalb  soils. 

Profile  of  Leetonia  very  stony  sandy  loam,  0  to  25 
percent  slopes,  in  a  forested  area  about  200  yards  south 
of  the  caretaker's  office  in  the  Washington  Monument 
State  Park,  just  below  the  siunmit  of  Monument  Knob 
on  South  Mountain: 

A,  0  to  4  inches:  very  dark  brown  to  black  (lOY'R  2/2  or  2  1) 
very  stony  sandy  loam;  strong,  fine,  crumb  structure; 
soft  to  very  slightly  hard  when  dry,  very  friable  when 
moist,  and  nonplastic  but  very  slightly  sticky  when 
wet;  roots  plentiful;  medium  acid;  abrupt,  irregular 
boundary;  horizon  is  2  to  6  inches  thick. 

Ao  4  to  9  inches:  pale-brown  (lOYR  6/3),  very  stony  and  very 
gritty  coarse  sandy  loam  to  loamy  coarse  sand;  weak, 
granular  structure  to  single  grain;  slightlj'  hard  and 


washin(;t()N  county,  Maryland 


brittle  when  dry,  friable  when  moist,  and  nonplast  ic 
but  very  slightly  sticky  when  wet;  a  few  large,  woody 
roots;  inany  inediiini  and  coarse  pon^s;  extremely 
acid;  clear,  irregular  l)oundary;  horizon  is  4  to  8 
inciies  thick. 

Bo  9  to  22  inches:  yello\visli-l)rovvn  (lOYR  S/fi),  very  stony 
and  very  gritty  coarse  sandy  loam;  distinctly  finer  or 
heavier  in  texture  than  horizon  A..;  weak,  medium, 
blocky  structure;  slightly  cemented;  modera1el.\'  hard 
when  dry,  firm  and  l)rittie  when  moist,  and  siigldi\ 
sticky  and  very  slightly  i)iastic  when  wet;  more  fine 
roots  than  in  horizon  Aj;  moderately  ra])i(lly  or  rapidly 
I)ermeal>le;  extremely  acid;  clear,  irregular  boundary; 
liorizon  is  12  to  24  inches  thick. 

C  22  to  42  inches  +  :  marbknl  or  variegated,  80  i)ercent  light 
brownish-gray  {2.5Y  6/2)  and  20  i)ercent  reddisli- 
ycUow  (7.5YR  (')/()),  very  stony  and  v(^ry  gritty,  decom- 
posed sandstone  of  coarse  sandy  loam  texture;  inher- 
ited very  weak,  slightly  i)laty  structure;  hard  when 
dry,  firm  and  brittl(>  wIhmi  moist,  slightly  sticky  and 
very  slightly  plastic  when  wet;  a  very  few  roots; 
extremely  acid. 

There  is  coiis'uUM'ahle  variation  in  the  lliiekness  of  the 
two  upper  hoi'izons;  in  some  phices  tliey  are  extremely 
thin.  The  Bo  horizon  in  some  phxces  is  loose,  not  so  strong- 
ly cemented,  and  not  so  strongly  colored  as  the  one 
described. 

Lehew  Series 

The  I-,elie\v  series  consists  of  excessively  drained, 
sliallow,  stony  soils  on  red  to  dark-red,  acid  sandstone. 
They  resemble  the  Dekalb  soils,  except  in  color,  but 
they  have  a  redder  profile,  particularly  in  the  lower 
subsoil  and  in  the  substratum.  The  Leliew  soils  also  liave 
somewhat  more  proininent  liorizons  than  the  Dekalb  soils. 

Lehew  soils  were  not  mapped  alone  in  this  county,  but 
are  in  undifferentiated  mapping  units  with  Dekalb  soils. 

Profile  of  Leliew  very  stony  loam,  0  to  25  percent 
slopes,  in  a  forested  area  just  north  of  U.S.  Highway 
No.  40,  about  '200  yards  east  of  the  highway  crest  over 
Fairview  jMountain: 

A)  0  to  3  inches:  very  dark  grayish-brown  (lOYR  3/2)  very 

stony  loam;  weak,  medium,  crumb  structure;  soft  to 
slightly  hard  when  dry,  very  friable  when  moist,  and 
slightly  plastic  and  slightly  sticky  when  wet;  roots 
rather  ai^undant;  strongly  acid;  clear,  wavy  boundary; 
horizon  is  1  to  3  inches  thick. 
Ao  3  to  5  inches:  brown  (lOYR  5/3)  very  stony  loam;  weak, 
medium,  crumb  structure;  slightly  hard  when  dry, 
very  friable  when  moist,  slightly  plastic  and  slightly 
sticky  when  wet;  roots  rather  plentiful;  many  pores 
of  all  sizes;  very  strongly  acid;  abrupt,  wavy  bound- 
ary; horizon  is  2  to  4  inches  thick. 

B]  5  to  11  inches:  dark  yellowish-brown  (lOYR  4/4)  to  dark- 

brown  (7. SYR  4/4)  very  stony  loam;  weak,  fine  to 
medium,  subangular  blocky  structure;  slightly  hard 
when  dry,  friable  when  moist,  slightly  plastic  and 
slightly  sticky  when  wet;  roots  few;  many  fine  and 
medium  pores;  very  strongly  acid;  gradual,  irregular 
lioundarv;  horizon  is  5  to  10  inches  thick. 

Bs  11  to  20  inches:  reddish-brown  (2.5Y'R  5/4  with  a  slight 
purplish  cast)  very  stony  gritty  loam;  moderate,  fine 
to  medium,  suV^angular  blocky  structure;  hard  when 
dry,  friable  to  somewhat  firm  when  moist,  slightly 
plastic  and  slightly  sticky  when  wet;  roots  few;  numy 
fine  and  medium  pores;  very  strongly  acid;  gradual, 
irregular  boundary;  horizon  is  8  to  18  incfies  thick. 

C  20  to  36  inches  -|- :  reddish-brown  (5YR  5/3),  stony  and 
very  chainiery  loam;  inherited  very  weak,  laminar 
structure;  very  few  roots;  moderately  permeable;  con- 
sists mostly  of  red  sandstone  fragments  with  some 
fine  material;  very  strongly  acid. 


In  many  places  (he  entire  profile  is  reddisli  brown 
and  is  distinctly  more  redtlisli  in  the  A^.  and  li,  horizons 
than  the  profile  described.  Tiie  Lehew  soils  iu\t  slightly 
less  coai-se  in  texture  throughout  than  cillici'  tlic  Dekalb 
or  the  Leetonia  soils. 

Lindside  Series 

The  Lindside  series  consists  of  moderately  well  drained 
soils  that  were  formed  from  alluvial  materials  in  the 
limestone  area.  The  materials  are  medium  or  fine  textured. 
They  were  washed  from  areas  of  upland  soils  underlain 
by  limestone,  such  as  soils  of  the  Hager.stown,  Duflield, 
Frankslown,  and  Frederick  series.  The  Lindside  soils 
are  on  bottom  lands  and  also  in  upland  depressions,  around 
drainage  heads,  and  on  foot  slopes  clo.se  to  smaller 
drainageways.  They  are  commonly  near  areas  of  Hunt- 
ington soils,  which  are  better  drained,  and  with  Dunning 
and  Melvin  soils,  which  are  more  poorly  drained,  all  from 
the  same  or  similar  materials. 

Most  areas  of  Lindside  soils  in  the  county  have  been 
cleared.  These  soils  are  commonly  used  for  corn  or 
pasture,  although  other  general  crops  are  grown  where 
drainage  has  been  improved. 

Profile  of  Lindside  silt  loam,  in  a  forest  adjacent  to 
Roundtop  Road,  three-tenths  of  a  mile  south  of  its 
intersection  with  Orchaixl  Road,  about  1  mile  north  of 
Cohill : 

Ai  0  to  14  inches:  brown  (lOYR  4/3)  silt  loam;  weak,  me- 
dium to  coarse,  crumb  structure;  moderately  hard 
when  dry,  friable  when  moist,  and  moderately  plas- 
tic and  moderately  sticky  when  wet;  roots  abundant; 
slightly  acid;  clear,  smooth  boundary;  horizon  is 
12  to  is  inches  thiclc. 

C,  14  to  26  inches:  dark  yellowish-brown  (lOYR  4/4)  silt 
loam;  common,  fine  specks  of  very  dark  gray;  com- 
pound, weak,  medium,  platy  and  very  weak,  fine  to 
medium,  subangular  blocky  structure;  hard  when 
dry,  rather  firm  when  moist,  and  moderately  plastic 
and  slightly  sticky  when  wet;  roots  plentiful  in  upper 
part;  many  fine  and  some  medium  pores;  moderately 
alkaline;  gradual,  irregular  boundary;  horizon  is  6  to 
12  inches  thick. 
26  to  40  inches:  olive  (SY  5/3)  silt  loam;  about  20  percent 
medium,  distinct  mottles  of  strong  brown  (7.5YR 
5/6) ;  compound,  weak,  coarse,  platy  and  very  weak, 
medium,  blocky  structure;  very  hard  when  dry,  firm 
when  moist,  and  plastic  and  .sticky  when  wet;  no 
visible  roots;  contains  a  few  remnants  of  fresh-water 
mollusk  shells,  and  a  few  waterworn  gravel  frag- 
ments; moderately  alkaline;  clear,  wavy  boundary; 
horizon  is  12  to  20  inches  thick. 

Dg  40  to  60  inches  +:  stratified  sand,  silt,  and  gravel;  silty 
and  sandy  portions  olive  (SY  4/3  with  a  bluish  cast); 
about  15  percent  fine,  distinct  specks  of  strong  brown 
(7.SY'R  5/6);  weak,  very  coarse,  platy  structure; 
silty  portion  hard  or  very  hard  when  dry,  moderately 
firm  when  moist,  and  plastic  and  sticky  when  wet; 
no  roots;  variable  jiermeability ;  bluish  color  fades 
completely  to  light  olive  gray  when  material  is  dried; 
gravel  is  mostly  waterworn  chert;  moderately  to 
strongly  alkaline. 

The  bluish  color  in  the  lower  substratum  is  not  every- 
where present,  nor  are  the  mollusk  shells  in  the  sub- 
stratum. Some  profiles  contain  more  gravel  throughout 
than  the  one  described,  and  the  substratum  may  not  be  so 
strongly  alkaline.  Lindside  soils  on  the  flood  plains  may 
be  subject  to  flooding  at  times,  but  those  in  upland  de- 
pressions are  less  suscept  il)le.  These  soils  are  fairly  wet 
and  have  a  seasonally  high  water  table. 


.")!J!ir).';:{ — i 


(12  4 


40 


SOIL   SURVEY   SERIES    1959,  NO.  17 


Lindside  silt  loam  (Lm). — This  soil  lias  the  proiile  that 
is  (lescfil)ed.  Wetness  and  the  possibility  of  ll()0(lin«j;  are 
the  greatest  hazards  on  this  soil.  AVith  improved  drainage, 
the  soil  can  be  used  for  nearly  all  crops,  but  it  is  used 
mostly  for  corn  and  pasture.  A  few  acres  may  have  more 
frecjuent  floods,  which  restrict  their  use  to  sod  crops  and 
grazing.  On  45  acres  the  surface  soil  is  rather  gravelly. 
The  '2,4:5r>  acres  ai'c  in  ca])al)ility  unit  lI\v-7. 

Lindside  silt  loam,  local  alluvium  (Ln). —  Fhis  soil  is 
like  Lindside  silt  loam,  but  it  is  located  in  upland 
depressions  instead  of  on  Hood  plains.  It  is  much  less 
likely  to  be  flooded  than  the  soil  on  the  bottom  lands. 
Impeded  drainage  and  seasonal  excess  water  are  the  chief 
hazards,  and  the  4S!S  acres  of  this  soil  are  in  capability 
unit  Tlw-7. 

Litz  Series 

The  Litz  series  consists  of  somewhat  e.xcessively  drained 
to  excessively  drained,  shallow,  skeletal  soils  that  were 
developed  on  light -colored,  acid  shale  that  contains  some 
thin  beds  of  limy  shale  or  limestone,  or  both.  The  Litz 
soils  resemble  the  Montevallo  soils  in  their  general  iirofile, 
but,  since  they  were  dev  eloped  from  and  influenced  l)y  par- 
tially limy  materials,  they  are  somewhat  moi-e  [)ro(luct  ive. 
The  liitz  soils  are  chiefly  on  ridges  within  the  ridge  ami 
valley  section  of  the  western  part  of  the  county.  They  also 
occur  on  a  few  isolated  ridges  within  the  limestone  valley 
in  the  northeastern  pixvt  of  the  county,  where  they  are 
intricately  mixed  with  soils  of  the  Teas  series. 

The  Litz  soils  are  fairly  extensive.  They  are  not  widely 
used  in  agriculture,  and  most  areas  remain  in  forest. 
Some  areas,  however,  are  used  for  genei'al  farming  or, 
more  connnonly,  for  orchards. 

Pi'ofile  of  Litz  shaly  loam,  0  to  10  percent  slopes,  in  a 
forested  area  just  off  Orchard  Koad,  1  mile  south  of  its 
intersection  with  Koundtop  Road,  about  one-half  mile 
northwest  of  Coliill : 

An  0  to  1  inch:  black  (lOYR  2/1)  loam  with  about  15  per- 
cent shale  chips;  weak,  fine,  crumb  to  granular 
structure;  soft  wlien  dry,  very  friable  when  moist, 
and  slightly  plastic  and  slightly  sticky  when  wet; 
roots  matted;  strongly  acid;  al)rupt,  wavy  bound- 
ary; horizon  is  '2  inch  to  3  inches  thick. 

A12  1  to  3  inches:  light  yellowish-brown  (lOYR  6/4),  shaly, 
heavy  loam;  weak  to  moderate,  coarse,  crumb  struc- 
ture; moderately  hard  when  dry,  friable  when  moist, 
and  sticky  and  moderately  plastic  when  wet;  roots 
plentiful;  about  25  percent  shale;  very  strongly  acid; 
clear,  wavy  boundary;  horizon  is  1  to  4  inches  thick. 

B/C    3  to  16  inches:  brown  (7. SYR  5/4)  very  shaly  silt  loam; 

compound,  inherited,  laminar  and  moderate,  fine, 
blocky  structure;  hard  when  dry,  firm  when  moist, 
and  plastic  and  sticky  when  wet;  a  few  large  roots; 
at  least  60  percent  pale-brown  to  pinkish  shale; 
strongly  acid;  abrupt,  irregular  to  broken  boundary; 
horizon  is  10  to  20  inches  thick. 

Dr  16  inches  -|-:  hard,  pale-brown,  gray,  or  greenish-gray, 
slightly  limy  shale. 

In  spots  there  is  a  B  horizon,  but  it  is  very  thin.  Be- 
cause the  soil  is  so  thin,  it  easily  becomes  droughty  in 
periods  of  low  or  poorly  distributed  rainfall.  Locally, 
the  soil  is  less  acid  than  the  descriljed  ])rofile. 

Litz  channery  loam,  3  to  10  percent  slopes,  moder- 
ately eroded  (LoB2). — This  soil  has  a  profile  like  the  one 
descril)ed,  excei)t  that  the  shale  fragments  are  larger  and 
harder,  and  there  are  some  hard,  thin,  flat  fragments  of 


sandstone  on  and  in  the  soil.  These  sandstone  fragments 
were  derived  from  seams  of  that  rock  that  are  present 
at  places  in  the  shale,  and  some  of  them  pi'obably  were 
deposited  by  gravity  from  higher  areas  of  other  soils. 
Although  this  soil  is  thin  and  droughty,  risk  of  erosion 
is  probably  the  most  signilicant  management  ])roblem. 
The  soil  is  suitable  for  cultivation,  with  the  pi-o[)er  ])i'e- 
cautions,  including  the  selection  of  cro))s  that  can  at 
least  partially  withstand  (hoiiglil.  The  2'.V2  acres  ai'e  in 
capal)i]ity  unit   1  le-1  1. 

Litz  channery  loam,  10  to  20  percent  slopes,  moder- 
ately eroded  (LoC2). — On  this  sloping  soil  there  is  need 
for  careful  mamigement  and  protection  and  careful  selec- 
tion of  crops.  There  are  97  acres,  in  capability  unit 
irie-:51. 

Litz  channery  loam,  10  to  20  percent  slopes,  severely 
eroded  (LoC3). — Ki-osion  has  been  severe  on  this  thin  and 
droughty  soil,  and  very  s])ecial  management  is  necessary 
if  the  soil  is  to  be  cultivated.  This  soil  is  in  capability 
unit  IVe-.')l.    It  occu])ies  10!)  aci-es. 

Litz  shaly  loam,  0  to  10  percent  slopes  (LsB). — This 
.soil  has  the  ))roiile  that  is  described  as  repi'esentative  of 
the  series.  Slopes  are  not  great,  ami  there  has  been  little, 
if  any,  erosion,  but  there  is  an  ei'osion  hazard.  The  soil 
is  well  suited  to  .some  cro])s,  including  orchards.  There 
are  ."*)()()  aci-es,  in  capal)ility  unit  IIIc 

Litz  shaly  loam,  3  to  10  percent  slopes,  moderately 
eroded  (LsB2). — This  soil  can  be  cultivated  if  it  is  jiroperly 
managed  and  pi'otected.  The  (V.V2  acres  are  in  capability 
unit  Ille  .'51. 

Litz  shaly  loam,  10  to  20  percent  slopes,  moderately 
eroded  (LsC2). —  Because  of  its  .strong  slopes,  this  soil  de- 
mands careful  management  and  protection  if  cultivated 
crops  are  to  be  grown.  The  management  needed  is  that 
outlined  for  capability  unit  IVe-3L  There  are  1,493 
acres. 

Litz  shaly  loam,  10  to  20  percent  slopes,  severely 
eroded  (LsC3). — This  soil  has  been  so  severely  eroded  that 
further  cultivation  is  not  advisable.  It  is  also  more 
droughty  than  the  noi'inal  uneroded  soil.  It  should  be 
managed  as  outlined  for  capability  unit  VIe-3.  There 
are  604  acres. 

Litz  shaly  loam,  20  to  30  percent  slopes,  moderately 
eroded  (LsD2). — Cultivation  produces  a  .severe  hazard  of 
erosion  on  these  .slopes,  and  the  791  acres  of  this  soil  are 
in  capability  unit  VIe-3.  About  69  acres  of  the  mapping 
unit  are  somewhat  channery  as  well  as  shaly. 

Litz  shaly  loam,  20  to  30  percent  slopes,  severely 
eroded  (LsD3). — This  Litz  shaly  loam  is  so  stee])  and  has 
been  so  severely  eroded  that  it  is  not  suitable  for  crops. 
With  proper  management,  it  could  supply  some  grazing. 
The  579  acres  are  in  capability  unit  VIIe-3.  A  few  spots 
are  channel"}'. 

Litz  shaly  loam,  30  to  45  percent  slopes,  moderately 
eroded  (LsE2). — This  soil  is  too  steep  and  shallow  for  cul- 
tivation, although  there  has  been  onl}'  moderate  erosion. 
Some  grazing  might  be  produced,  however,  if  good  stands 
of  deep-rooted  pasture  plants  can  be  established.  The 
soil  is  in  capability  unit  YIIe-3.  It  occupies  379  acres. 
There  are  a  few  channery  spots. 

Litz  shaly  loam,  30  to  45  percent  slopes,  severely 
eroded  (LsE3). — On  these  slopes  of  severel}-  eroded,  thin 
soil,  grazing  is  not  practical.   The  areas  should  be  re- 


WASHIN(iT()N    COUNTY,  MAUVLAM) 


41 


forested.  This  soil  is  in  (■;ii)iil)ili(_v  iiiiil  N'ilc  ;5.  It  oc- 
cupies I'M)  acres. 

Litz  shaly  loam,  45  to  60  percent  slopes  (LsF).  This 
is  the  steepest  Ijilz  sluily  loain.  It  is  uiieroded  hecause 
all  of  it  has  iviiiaiiied  in  forest,  and  that  is  the  hest  use. 
The  U>2  acres  are  in  capal)ility  unit  \'lle  'A. 

Litz-Teas  channery  silt  loams,  0  to  8  percent  slopes 
(LtB). — The  Litz-Teas  complexes  consist  of  intricate  nii.x- 
tures  of  Litz  soils  and  oi"  the  similar,  but  reddish,  'IVas 
soils.  E\en  tlioujili  this  mapping:-  unit  is  <>-ent]y  or  mod- 
erately sl()pin<>',  there  is  some  thi-eaf  of  erosion.  There 
are        acivs,  in  capability  miit  Ile-11. 

Litz-Teas  channery  silt  loams,  3  to  15  percent  slopes, 
moderately  eroded  (LtC2). —  Ln()u<>h  erosion  has  taken 
place  on  this  thin  .soil  to  limit  its  use  for  crops.  Cul- 
tivated crops  may  be  ojrown  with  the  careful  niana<;ement 
to  check  erosion  that  is  given  for  its  capability  unit, 
IIIe-;n.    There  are  (I'jr)  aci'es,  many  of  them  in  orchai'ds. 

Litz-Teas  channery  silt  loams,  8  to  15  percent  slopes, 
severely  eroded  (LtC3). —  Erosion  has  been  so  severe  on 
these  moderate  slopes  that  ci'oppin<»:  nnist  be  very  stron<i;ly 
limited  if  further  damage  is  to  be  prevented.  The  126 
acres  are  in  capability  unit  IVe-31. 

Litz-Teas  channery  silt  loams,  15  to  25  percent  slopes, 
moderately  eroded  (LtD2). — Erosion  has  not  been  severe 
on  these  soils,  but  slopes  are  so  p;reat  that  cropping 
must  be  severely  limited.  There  ai'e  164  acres,  in  capa- 
bility unit  IVe-31. 

Litz-Teas  channery  silt  loams,  15  to  25  percent 
slopes,  severely  eroded  (LtD3). — Erosion  lias  been  so  act  ive 
that  these  soils  are  of  little  use  for  other  than  deep-rooted 
sod  plants  or  trees.  The  1(57  acres  ai'e  in  capabilitv  unit 
VIe-3. 

Litz-Teas  channery  silt  loams,  25  to  45  percent 
slopes,  moderately  eroded  (LfE2). — These  slopes  are  too 
steep  and  the  soils  too  thin  for  safe  cultivation,  but  sod 
crops  can  be  produced.  Tlie  soils  occupy  56  acres  and 
are  in  capability  unit  yie-3. 

Melvin  Series 

The  Melvin  series  consists  of  poorly  drained  soils  of 
the  flood  plains,  made  up  of  fine  materials  that  were 
washed  from  limestone  soils.  The  soils  are  more  poorly 
drained  than  either  the  Huntinoton  or  Lindside  soils 
of  the  same  flood  plains,  but  they  are  not  so  pooi-ly 
drained  as  the  Dunniug  soils. 

The  Melvin  soils  were  also  mapped  as  parts  of  un- 
differentiated units  with  the  Dunning  soils.  These  undif- 
ferentiated units  have  been  listed  after  the  discussion  of 
the  Dunning  series. 

Profile  of  Melvin  silt  loam  at  a  point  in  the  flood  ])lain 
of  Grove  Creek  just  north  of  the  Smithsburg-Tveitersburg 
Road,  about  75  yards  northwest  of  its  intersection  witli 
Durberry  Road : 

A„  0  to  10  inches:  light  olive-brown  (2.5Y  5/4)  silt  loam 
or  light  silty  clay  loam;  no  ai)i)arent  structure;  hard 
to  very  hard  when  dry,  moderately  firm  when  moist, 
and  plastic  and  sticky  when  wet;  roots  relatively 
few;  many  fine  pores  and  some  worm  channels; 
mildly  to  moderately  alkaline;  abrupt,  smooth 
l)oundary;  this  is  the  recent  overwash  deposit  and 
is  the  present  surface  soil;  horizon  is  8  to  12  inches 
thick. 


Ciu  10  to  18  inclu's:  dark  xrayiHli-brown  to  oiivoxray  (2.5Y 
4/2  to  5Y  4/2)  silt  loam;  5  to  10  percent  mcdiiim, 
distinct  splotches  of  recldisli  y(?llow  (T./iYll  0/8); 
moderate,  m(-dium  to  coarse,  crumb  structure;  mofl- 
erat(!ly  hard  when  dry,  friable  when  moist,  and  mod- 
erately [jlastic  and  moderately  sticky  when  wet;  few 
roots;  many  fine  and  a  few  large  jjores  anfl  wonn 
channels;  this  hori/oii  was  the  surface?  soil  before  the 
overwash  was  depositefl;  moderat(4v  alkaline;  alirujit, 
smooth  boundary,  except  that  fingers  extend  down- 
ward tiirough  old  root  chaiuiels  or  siilisoil  cracks  into 
th(!  liori/on  below;  horizon  is  6  to  10  inclu^s  thick. 
18  to  30  inches  4  :  pale-olive  (5Y  6/4)  silty  clay  loarn; 
about  no  percent  sjiecks  and  sjxjts  of  light  and  dark 
gray,  olive  gray,  anfl  olive  yellow;  com[>ound,  mod- 
erate, coarse,  |)laty  and  strong,  medium,  subangular 
blocky  structure;  very  hard  wiien  dry,  firm  wh(?ri 
moist,  and  very  i)lastic  and  very  sticky  when  wet; 
no  roots;  moderately  to  strongly  alkaline. 

The  surface  layer  varies  in  thickness  from  phice  to 
place.  Tlie  subsoil  is  neaj  ly  everywhere  alkaline.  Locally, 
tlie  immediate  surface  layer  will  be  more  brown  than  in 
t  lie  t  y[)ic;il  proiile  descril)e(l,  or  somewhat  reddish,  depend- 
ing tipon  the  nature  of  the  most  recent  deposit  at  that 
point.  This  is  a  poorly  drained  soil  and  one  that  may  still 
be  .subject  to  flooding.  It  is  wet  for  long  peri(xls,  and  the 
water  table  is  close  to- the  surface  in  wet  seasons. 

Melvin  silt  loam  (Me). — A  proHle  of  this  soil  was 
described.  The  subsoil  and  substratum  are  calcareous  in 
some  places.  Artilicial  drainage  is  needed  for  fidl  nse 
and  production.  Limitations  in  use  after  drainage  and 
the  frequent  flood  hazard  are  the  reasons  why  the  soil  is 
placed  in  capability  unit  IIIw-2.  A  few  areas  that  are 
more  frequently  damaged  by  flooding  are  better  used  for 
permanent  grass  or  woodland.  There  are  146  aci'es  in  the 
county.  The  slope  is  almost  everywhere  less  than 
percent. 

Monongahela  Series 

The  Monongahela  series  consists  of  moderately  well 
drained,  acid,  brown  soils  on  A^ery  old  ri^-er  terraces. 
The  soils  have  a  thick,  strongly  developed  fragipan  (silt- 
pan)  in  the  lower  subsoil.  They  developed  in  old  alluvial 
deposits  that  originated  in  areas  of  acid  sandstone  and 
shale.  The  areas  are  mostly  along  the  Potomac  River, 
but  a  few  small  areas  are  elsewhere  in  the  county.  The 
Monongahehx  soils  are  less  well  drained  than  the  brown 
Holston  soils  and  the  reddish  Waynesboro  soils,  but  they 
are  much  better  drained  than  the  Tyler  soils.  All  of  these 
soils  are  located  on  the  same  terrace  formations.  Most  of 
the  acreage  of  Monongaliela  soils  in  the  comity  has  been 
cleared. 

Profile  of  Monongahela  gravelly  loam,  o  to  8  percent 
slopes,  moderately  eroded,  in  a  once  cultivated,  but  now 
idle,  area  50  yards  north  of  the  AYestern  Maryland  Rail- 
road tracks,  one-half  mile  west  of  Shankton  Road: 

A„      0  to  8  inches:  brown  (lOYR  5/3),  gravelly,  heavy  loam; 

moderate,  fine,  crumb  structure;  moderately  hard 
when  dry,  friable  when  moist,  and  moderately  plas- 
tic and  moderately  sticky  when  wet;  roots  plentiful; 
about  15  jjercent  waterworn  sandstone  gravel;  me- 
dium acid;  abrupt,  smooth  boundary;  horizon  is  6  to 
8  inches  thick. 

B21  8  to  18  inches:  yellowish-brown  (lOYR  5/6)  gravelly 
silt  loam;  compound,  weak,  coarse,  platy  and  mod- 
erate, medium,  subangular  blocky  structure;  mod- 
erately hard  when  dry,  slightly  firm  and  somewhat 
brittle  when  moist,  and  moderately  plastic  and 


42 


SOIL  SURVEY   SP:RIES    1  959,  NO.  17 


inodoratoly  sticky  when  wet;  roots  plentiful;  many 
fine  and  medium  jiores;  about  20  percent  waterworn 
gravel;  medium  acid;  clear,  smooth  boundary;  hori- 
zon is  8  to  10  inches  thick. 
-  Boo,,,  18  to  32  inches:  strong-brown  (7.5 YR  5/6),  gravelly, 
light  silty  clay  loam;  about  40  percent  horizontal 
streaks  of  light  yellowish  l)rown  (lOYR  6/4);  com- 
pound, strong,  medimn,  (jlaty  and  strong,  fine  to 
medium,  blocky  structure;  very  hard  when  dry, 
firm  and  very  brittle  when  moist,  and  plastic  and 
sticky  when  wet;  very  few  roots;  slowly  permeable; 
this  is  a  true  fragipan,  or  siltpan;  about  15  percent 
gravel;  very  strongly  acid;  gradual,  smooth  bound- 
ary; horizon  is  12  to  18  inches  thick. 

B:),„  32  to  50  inches:  variegated  by  distinct  ,  mostly  horizontal 
lay(>rs,  yellowish-red  and  brownish-yellow  (5YR  5/6 
and  lOS'R  6/6),  gravelly,  heavy  silt  loam  to  light 
silty  clay  loam;  compound,  strong,  coarse,  platy 
ancl  very  strong,  medium,  blocky  structure;  very 
hard  when  dry,  firm  and  very  brittle  when  moist, 
and  j)lastic  and  very  sticky  when  wet;  no  visible 
roots;  about  30  percent  gravel;  a  fragipan  horizon; 
very  strongly  acid;  fairly  clear,  smooth  boundary; 
horizon  is  15  to  24  inches  thick. 

C  50  to  60  inches  ^  :  yellowish-red  (SYR  5/6),  very  grav- 
elly, decomposed  shale  of  loam  texture;  about  20 
percent  medium,  distinct  mottles  of  reddish  yellow 
(7.5YR  6/6);  weak,  coarse,  platy  structure;  moder- 
ately hard  when  dry,  firm  when  moist,  and  sticky 
and  slightly  j)lastic  when  wet;  no  roots;  ai)out  40 
])ercent  waterworn  sandstone  gravel;  extremely  acid. 

The  fraf!:ipan  layers  may  be  from  about  2  to  nearly 
G  feet  (liick.  Some  areas  have  a  more  yellowish  and  less 
l>i-()wn  surface  layer  and  sidxsoil  than  the  horizons  de- 
scribed. Cidtivated  areas  conunonly  have  many  surface 
rills  and  small  erullies  that  may  cut  into  the  fragipan. 
The  fragipan  slows  down  internal  drainage,  increasing 
the  runolF  and  the  hazard  of  erosion.  The  ]\Ionongahela 
soils  are  fairly  wet  and  cold  in  spring,  altliough  in  dry 
midsummer  weather  their  available  moisture  is  generally 
low.  Thus,  they  tend  to  be  too  wet  part  of  the  year  and 
somewhat  droughty  at  other  times. 

Monongahela  gravelly  loam,  .3  to  8  percent  slopes, 
moderately  eroded  (MgB2). — This  soil  has  tlie  prolile  that 
is  described.  The  threat  of  erosion  from  tiie  runoff  on 
these  slopes  is  a  more  significant  management  [)roblem 
than  tlie  impeded  drainage,  and  the  soil  has  been  ])laced 
in  capability  unit  Ile-l:').    There  are  oOl  acres. 

Monongahela  gravelly  loam,  8  to  15  percent  slopes, 
moderately  eroded  (MgC2). — On  these  slopes  runoll'  is 
rapid  and  the  erosion  hazard  is  great.  The  110  acres  are 
in  capability  unit  Ille-M. 

Monongahela  silt  loam,  0  to  .3  percent  slopes  (MhA). — 
This  soil  has  a  profile  like  the  one  described,  but  it  is 
less  gravelly  throughout  and  the  surface  soil  is  more  silty. 
On  these  nearly  level  areas,  both  runoff  and  internal 
drainage  are  slow  and  wetness  is  a  greater  hindrance  to 
use  than  the  threat  of  erosion.  The  443  acres  are  in 
capability  unit  IIw-l. 

Monongahela  silt  loam,  3  to  8  percent  slopes,  mod- 
erately eroded  (MhB2). — This  is  the  most  extensive  soil  in 
the  ]\Ionongahela  series  in  the  county.  Over  most  of  the 
acreage,  much  of  the  surface  layer  has  been  lost.  There 
are  many  gullies  in  places,  but  most  of  them  are  shal- 
low; on  24  acres  erosion  has  been  severe.  This  soil 
can  be  used  for  all  suitable  crops  Avith  management  to 
prevent  further  damage.  It  occupies  861  acres  and  is  in 
capability  unit  IIe-13. 

Monongahela  silt  loam,  8  to  15  percent  slopes,  mod- 
erately eroded  (MhC2). — Because  care  is  required  to  cul- 


tivate the  slopes  safely,  the  223  acres  of  this  soil  are  in 
capability  unit  irie-13. 

Monongahela  silt  loam,  15  to  25  percent  slopes,  mod- 
erately eroded  (MhD2). — This  is  the  stee{)est  soil  of  the 
Monongahela  series  in  the  county.  Because  of  the  slope 
and  tlie  degree  of  j)ast  erosion,  the  soil  is  suited  to  tilled 
crops  grown  oidy  infrequently  in  very  long  rotations. 
If  tiUed  crops  are  grown,  conservation  measures  imist  be 
carefully  applied.  The  57  acres  are  in  capability  unit 
IVe-9. 

Montevallo  Series 

The  Montevallo  series  consists  of  very  shallow,  exces- 
sively drained,  skeletal  soils.  The  soils  have  a  weakly 
developed  A  horizcm  and  practically  no  B  horizon.  The 
surface  layei'  directly  overlies  i)artially  decomposed  and 
hard,  gray  to  pale-brown  shales.  In  some  places  the 
parent  shales  contain  a  small  amount  of  lime. 

The  ISfontevallo  soils  occur  mostly  on  the  shale  ridges 
north  and  west  of  Fairview  Mountain,  but  some  are  on 
ridges  and  steep  areas  on  both  sides  of  Conococheague 
Creek.  Only  so)ne  of  the  most  gently  sloping  and  least 
eroded  Montevallo  soils  ai-e  suitable  for  regular  cultiva- 
tion, and  then  oidy  with  very  careful  management.  These 
soils  are  low  in  natural  fertility  and  are  not  very  pro- 
ductive. 

Profile  of  Montevallo  shaly  loam,  0  to  10  percent  slopes, 
moderately  eroded,  in  a  forested  area  on  Blair  Valley 
Koad  one-half  mile  south  of  the  Pennsylvania  State  line: 

A,  0  to  4  inches:  brown  (lOYR  4/3)  shaly  loam;  moderate  to 
strong,  medium,  crumb  structure;  slightly  hard  when 
dry,  very  friable  when  moist,  and  nonplastic  but 
slightly  sticky  when  wet;  roots  plentiful;  about  30 
percent  partially  decomposed  shale;  strongly  acid; 
clear,  wavy  boundary;  horizon  is  2  to  6  inches  thick. 

C  4  to  12  inches:  yellowish-brown  (lOYR  5/4)  very  shah- 
loam;  strong,  medium,  crumb  structure;  slightly  hard 
when  dry,  friable  when  moist,  and  nonplastic  but 
slightly  sticky  when  wet;  roots  few;  70  to  95  percent 
shale,  partially  decomposed;  strongly  acid;  abrupt, 
wavy  boundary;  horizon  is  6  to  10  inches  thick. 

Dr  12  inches  +:  light  brownish-grav,  pale-brown,  and  light 
yellowish-brown  (2.5 Y  6/2,  10 YR  6/3,  and  2.5Y  6/4), 
moderately  hard  to  very  hard  shale. 

Locally,  the  immediate  surface  layer  in  forested  areas 
is  almost  black.  Cultivated  areas  have  a  yellowish-brown 
to  light  brownish-gray  surface  layer;  some  eroded  areas 
have  a  surface  layer  that  is  more  brown  and  less  gray. 
The  soil  may  be  more  acid  than  that  described  in  the  i^ro- 
file.  In  the  extreme  western  part  of  the  county,  the  C 
horizon  may  have  a  slight  reddish  cast,  where  the  Monte- 
vallo soils  are  close  to  soils  of  the  Calvin  series. 

Montevallo  shaly  loam,  0  to  10  percent  slopes,  mod- 
erately eroded  (MmB2). — This  soil  has  the  jjrofile  that  is 
described  in  detail.  Erosion  is  a  hazard,  but  it  is  less  of 
a  management  problem  on  these  thin,  droughty  soils  than 
the  maintenance  of  moisture  and  fertility.  The  1,857  acres 
are,  therefore,  in  capability  unit  IIIs-2. 

Montevallo  shaly  loam,  10  to  20  percent  slopes,  mod- 
erately eroded  (MmC2). — On  these  slopes  the  risk  of  ero- 
sion is  the  most  important  management  problem,  but  the 
soil  also  has  hazards  of  drotightiness  and  low  fertility. 
The  soil  is  in  capability  unit  IVe-32.  It  occupies  2,972 
acres. 


\vAsiiiN(;'i()N  corxrv,  mahvland 


43 


Montevallo  shaly  loam,  10  to  20  percent  slopes,  se- 
verely eroded  (MniC3). — 'I'his  soil  li.is  Ihhmi  so  sovcrolv 
(nodiMl  (hilt  lluMo  is  little  but  shale  left.  With  very  careful 
inana^fcnuMit  and  erosion  control,  and  with  stroiijr  limita- 
tions on  iira/iiii;',  I  lie  soil  can  he  used  I'or  pasluiv.  'i'liere 
are  1,C)2S  acres,  in  cai)al)ility  unit  VIe-;5. 

Montevallo  shaly  loam,  20  to  .'{O  percent  slopes,  mod- 
erately eroded  (MmD2). — Erosion  has  not  l)een  seveiv  on 
(his  soil,  but  there  is  such  a  strong  risk  of  erosion  that  the 
soil  should  not  be  used  for  cultivated  crops.  The  1,812 
acres  are  in  capal)ility  unit  VIe-S. 

Montevallo  shaly  loam,  20  to  .'JO  percent  slopes,  se- 
verely eroded  (MmD3).--'riiis  steep  soil  has  l)een  so  severely 
eroded  that  it  should  not  be  cultivated,  and  firazino;  will 
be  hazardous.  The  soil  should  be  refoivsted  wherever 
feasible.  There  are  623  acres,  in  capability  unit  VIle-3. 

Murrill  Series 

The  Murrill  series  consists  of  soils  that  are  deep  and 
well  drained.  The  soils  developed  on  a  combination  of 
two  very  ditl'erent  kinds  of  materials.  They  are  on  ex- 
tensive colluvial  fans  of  material  from  acid  rocks,  mostly 
sandstone  and  quartzite.  The  rocks  have  been  moved  by 
gravity  from  mountains  and  ridges  out  into  the  valleys 
over  limestone  materials.  The  mantle  of  acid  material 
is  everywhere  thin  enough  to  allow"  the  underlying  lime- 
stone or  limestone  residuum  to  influence  the  soil  that  has 
been  deveIoi)ed.  In  most  places  the  surface  layer  has  been 
strongly  influenced  by  the  limestone.  There  are  spots, 
however,  where  the  surface  layer  and  the  upper  subsoil 
have  been  developed  in  nearly  pure  (puirtzite  or  sandstone 
material  and  the  lower  subsoil  has  been  developed  in  lime- 
stone residuum. 

The  Murrill  soils  are  extensive  and  important;  they 
make  up  about  6  percent  of  the  county.  These  soils  occur 
at  many  places  on  the  fringes  of  the  limestone  valley, 
but  they  are  most  extensive  in  the  Clear  Spring  area  just 
east  of  Fair\  iew  Mountain.  The  topography  is  generally 
favorable  for  agriculture,  mostly  undulating  to  gently 
rolling. 

The  Murrill  soils  are  fertile,  fairly  easily  managed,  and 
highly  productive  under  good  management.  Besides  being 
deep,  well  drained,  and  productive,  they  have  a  high 
capacity  for  furnishing  moisture  to  crops.  Most  of  the 
acreage  has  excellent  air  drainage  and  is  highly  regarded 
for  orchards,  as  well  as  for  general  farm  crops  and  pas- 
ture. ]S"early  all  areas  are  used  for  crops,  pastures,  or 
orchards,  with  only  a  few  spots  remaining  in  forest. 

Profile  of  Murrill  silt  loam,  0  to  3  percent  slopes,  in  a 
cultivated  field  just  back  of  the  new  elementary  school 
at  Clear  Spi'ing: 

Ap    0  to  7  inches:  dark  grayish-brown  (lOYR  4/2)  silt  loam; 

moderate,  fine  to  medium,  crumb  structure;  shghtly 
hard  when  dry,  friable  when  moist,  and  slightly  plas- 
tic and  moderately  sticky  when  wet;  roots  abundant; 
occasional  subangular  to  rounded  sandstone  gravel 
fragments;  slightly  acid;  abrupt,  smooth  boundary; 
horizon  is  6  to  8  inches  thick. 

Bi     7  to  17  inches:  yellowish-brown  (lOYR  5/4)  silt  loam; 

weak  to  moderate,  fine,  subangular  bloeky  structure; 
moderately  hard  when  dry,  friable  when  moist,  and 
moderately  plastic  and  moderately  sticky  when  wet; 
roots  plentiful;  many  fine  and  medium  and  some  large 
pores;  occasional  gravel  fragments;  slightly  acid; 
clear,  wavy  boundary;  horizon  is  6  to  10  inches  thick. 


lU,  17  to  20  inches:  ycllowisli-brown  (lOYR  5/fi),  light  Kilty 
clay  loam;  itio(lcrat(?  to  strong,  fine  ancl  riicdiiirn, 
blocky  and  sul)angular  blocky  structure!;  tiard  when 
dry,  in<)d(Tately  firm  when  moisl,  and  sticky  and 
moderately  plastic  when  wet;  roots  fairly  (;<jmmon; 
many  fine  and  medium  pores;  very  few  gravel  frag- 
ments; sliglitly  acid;  gradual,  wavy  boundary;  hori- 
zon is  8  to  12  inches  thick. 

J},.  20  to  40  inches:  n-ddish-ycilow  (7..5YR  0/0)  silty  clay 
loam;  strong,  fine  and  medium,  blocky  structure; 
hard  when  dry,  firm  when  moist,  and  sticky  and 
plavstic  when  wet;  a  few  fine  roots;  fine  pores; 
no  gravel;  common,  self-colored  clay  skins  and  many 
black  films  on  aggregates;  medium  acirl;  gradual  to 
clear,  wavy  bounriary;  horizon  is  12  to  20  iiiclies 
thick.  The  horizcjii  appears  to  be  transitional 
between  the  doniinant iy  sandstone  ujjper  materials 
and  the  limestoiK;  residuuni  materials  below. 

Bjit    40  to  51  inches:  strong-brown  (7. SYR  5/0)  silty  clay  loam; 

slightly  variegated,  with  about  20  {)ercent  fine  specks 
either  more  yellowish  or  more  reddish  than  the  base 
color;  compound,  strong,  medium  to  coarse,  platy 
and  moderate,  mcflium,  subangular  blocky  structure; 
very  hard  when  dry,  firm  when  moist,  and  sticky  and 
very  [jlastic  when  wet ;  a  very  few  fine  roots;  only  fine 
pores;  no  gravel;  common  clay  skins  on  block  surfaces, 
with  some  plate  surfaces  coated  with  black;  strongly 
acid;  clear,  wavy  to  irregular  boundary;  horizon  is 
8  to  12  inclies  thick. 

C  51  to  72  inches  -\- :  strong-brown  (7.5YR  .5/8)  very  silty 
clay  loam;  very  weak,  platy  to  massive  structure; 
hard  when  dry,  moderately  firm  and  brittle  when 
moist,  and  plastic  and  slightly  sticky  when  wet;  occa- 
sional black  specks;  no  gravel;  medium  to  slightly 
acid. 

Throughotit  the  Murrill  series,  there  is  considerable 
variation  in  depth  to  the  stibstratum,  in  content  of  gravel, 
in  texture  of  the  surface  layer,  and,  most  important,  iit 
the  proportions  of  and  the  degree  of  mixing  of  the  acid 
colltivial  and  the  residtial  limestone  materials.  There  is 
also  some  variation  in  color.  Where  limestone  material 
is  dominant,  the  soil  is  somewhat  more  red  than  described; 
vrhere  sandstone  material  is  dominant,  the  upper  part 
of  the  soil,  in  particular,  is  somewhat  more  yellow. 

Murrill  gravelly  loam,  0  to  3  percent  slopes  (MoA). — 
This  soil  has  a  profile  mtich  like  the  one  described  in 
detail,  except  that  its  surface  layer  contains  more  gravel 
and  less  silt  and  clay.  There  is  also  more  gravel  through- 
out the  profile.  This  soil  is  very  gently  sloping.  It  can 
be  cultivated  freely  without  danger  of  damage  if  good 
farming  practices  are  follow-ed.  This  soil  occupies  1,479 
acres  and  is  in  capability  unit  I^. 

Murrill  gravelly  loam,  0  to  8  percent  slopes,  mod- 
erately eroded  (MoB2). — This  is  the  most  extensive  Mur- 
rill soil.  There  are  9,485  acres;  they  can  be  cultivated 
with  fairly  simple  practices  to  prevent  ftirther  erosion 
and  are  well  suited  to  all  crops  grown  in  the  area.  This 
soil  is  in  capability  unit  Ile^. 

Murrill  gravelly  loam,  8  to  15  percent  slopes,  mod- 
erately eroded  (MoC2). — This  is  another  extensive  soil. 
With  more  careful  management  than  that  needed  on  the 
more  gently  sloping  soil,  it  can  be  safely  used  for  all 
kinds  of  farming.  The  4,122  acres  are  in  capability  unit 
IIIe-1. 

Murrill  gravelly  loam,  8  to  25  percent  slopes,  se- 
verely eroded  (MoD3). — This  soil  has  been  severely  dam- 
aged by  erosion.  Most  of  the  original  surface  layer  and, 
in  some  places,  part  of  the  subsoil  have  been  eroded,  and 
there  are  frequent  gullies  in  most  places.  Further  cultiva- 
tion is  not  practical,  but  this  soil  can  produce  excellent 


44 


SOIL  SURVEY   SERIES    19.59,   NO.  17 


jiraziilii-  if  well  sodded  and  nmiiaged.  There  are  84  acres, 
in  (•■•ipaljilit y  unit  Vle-2. 

Murrill  f»ravelly  loam,  15  to  2.5  percent  slopes,  mod- 
erately eroded  (MoD2). — The  sh)i)i"  of  this  soil  is  ci-itical 
enou<j:h  so  that  cultivaHon  sliould  be  limited  to  an 
occasional  tilled  crop  in  a  long  rotation  with  sod  crops. 
The  soil  is  well  suited  to  sodded  oi-chards.  The  .596  acres 
are  in  capability  unit  IVe-.'i. 

Murrill  gravelly  loam,  25  to  45  percent  slopes,  mod- 
erately er«)ded  (MoE2). — There  are  only  ;>[  acres  of  this 
steep  soil.  Because  of  the  slope,  pasture  would  be  a 
nuich  more  suilal)le  and  safe  use  than  any  cropping.  This 
soil  is  in  capability  unit  Vie  2. 

Murrill  gravelly  sandy  loam,  0  to  8  percent  slopes 
(MrB). — This  soil  has  a  surface  layei-  more  sandy  than  that 
of  the  gravelly  loam.  The  saml,  like  tlie  gi-avel,  is  materia! 
remaining  from  the  sandstone  i)art  of  the  parent  material. 
The  sand  makes  the  soil  somewhat  less  fertile  and  less 
productive  than  the  olliei-  Alui-i-ill  soils  and  tends  to 
make  it  somewhat  droughty.  The  .'UiS  acres  are  in  capa- 
bility unit  IIs-2. 

Murrill  gravelly  sandy  loam,  ,3  to  15  percent  slopes, 
moderately  eroded  (MrC2). — On  these  slopes,  where  some 
erosion  has  already  taken  place,  the  hazard  of  erosion 
is  of  more  significance  in  management  than  the  sandy 
nature  of  the  soil.  Because  of  this  combination  of  ei-osioii 
hazard  and  sandy  soil,  the  (wf-i  acres  aiv  in  ca])ability 
unit  IIIe-5. 

Murrill  gravelly  sandy  loam,  8  to  15  percent  slopes, 
severely  eroded  (MrC3). — Cultivation  causes  a  particular 
hazard  of  further  erosion  on  this  eroded,  sloping,  sandy 
soil.  An  occasional  crop  may  be  grown  witli  pro])er  man- 
agement, but  the  soil  is  better  suited  to  liay  or  grazing. 
The  84  acres  are  in  capability  unit  IVe-.5. 

Murrill  gravelly  sandy  loam,  15  to  25  percent  slopes, 
moderately  eroded  (MrD2). — On  this  soil,  erosion  has  not 
been  severe,  but,  because  the  slopes  are  steep,  there  is  a 
threat  of  erosion  if  cover  is  not  maintained.  The  88 
acres  are  in  capability  unit  IVe-5. 

Murrill  gravelly  sandy  loam,  15  to  25  percent  slopes, 
severely  eroded  (MrD3). — Tliis  steep  soil  has  been  too  se- 
verely eroded  to  permit  any  furtlier  c\dtivati(m.  It  should 
be  ke|)t  in  sod  and  cai-efully  grazed,  or  it  should  be  planted 
to  trees.  Tlie  soil  occupies  40  acres  and  is  in  capability 
unit  VIe-2. 

Murrill  silt  loam,  0  to  .">  percent  slopes  (MsA). — Tliis 
is  probably  the  best  agricultural  soil  of  the  Murrill  series. 
It  has  the  jirofile  that  is  described  in  detail.  The  surface 
laver  is  silt  loam;  the  soil  is  nearly  level;  tliere  is  very 
little  gravel  to  interfere  with  cultivation;  and  there  has 
been  practically  no  erosion.  The  269  acres  are  in  capa- 
bility unit  1-4. 

Murrill  silt  loam,  0  to  8  percent  slopes,  moderately 
eroded  (MsB2). — Erosion  can  be  controlled  on  this  sloping- 
soil  witli  the  management  suggested  for  its  capability 
unit,  lie— i.  The  soil  is  suited  to  all  the  crops  of  the  area, 
and  it  is  especially  good  for  orchards.  There  are  872  acres. 

Murrill  silt  loam,  8  to  15  percent  slopes,  moderately 
eroded  (MsC2). — Intensive  erosion-control  ])ractices  are 
required  to  keep  this  soil  in  a  condition  to  continuously 
])roduce  good  crops.  There  are  214  acres,  in  capability 
unit  IIle-4. 


Myersville  Series 

The  Myersville  sei-ies  consists  of  deep,  well-di-ained, 
brown  soils  developed  in  material  weatheivd  from  meta- 
basalt,  a  rock  locally  known  as  greenstone.  The  Myersville 
soils  are  somewliat  similar  to  the  Highdeld  soils,  but 
they  aie  moi-e  deeply  weathered  and  more  mature,  and 
tliey  luive  stronger  coloi-s  and  more  strongly  developed 
soil  structure.  The  Myersv  ille  soils  occur  mostly  at  lower 
elevations  in  valleys,  and  the  Ilighlield  soils  are  mostly 
limited  to  higher  elevations  on  ridges  ami  mountains. 
The  Fau<juier  soils  were  also  developed  in  the  same  parent 
rock  nuiterial,  but  they  are  much  redder  throughout  tlieir 
profile  and  are  more  maturely  developed  than  the  Myers- 
\  ille  soils. 

The  Myersville  soils  are  extensive  in  Washington 
(-ounty,  ))arti(ndarly  in  the  southeastern  part.  They  are 
fertile  and  productive  ami  are  iiiglily  regarded  for  farm- 
ing. Only  a  few  spots,  other  than  stony  areas,  remain 
in  forest. 

Profile  of  Myersville  silt  loam,  0  to  Z  percent  slopes, 
in  a  forest  100  yards  west  ami  200  yards  south  of  the 
intersection  of  Kaetzell  Koad  with  State  Koad  No.  67, 
near  Ciai)lan(l : 

Ai     0  to  3  inches:  very  dark  brown  (lOYR  2/2)  silt  loam; 

moderate,  fine,  crumb  structure;  sliglitly  hard  when 
dry,  very  friable  when  moist,  and  slightly  plastic  and 
sliglitly  sticky  when  wet;  roots  abundant;  medium 
acid;  clear  to  abrupt,  wavy  boundary:  horizon  is  1  to 
3  inches  thick. 

A2  3  to  8  inches:  brown  (lOYR  5/3)  silt  loam;  moderate, 
medium,  crumb  structure;  hard  when  dry,  friable 
when  moist,  and  moderately  plastic  and  mofieratelv 
sticky  when  wet;  roots  plentiful;  many  fine  and  medi- 
um and  some  large  pores;  strongly  acid;  clear,  wavy 
boundary;  horizon  is  4  to  7  inches  thick. 

B;.,  8  to  16  inches:  strong-brown  (7. SYR  5^8)  gritty  silty  clay 
loam;  moderate,  medium,  subangular  blocky  struc- 
ture; very  hard  when  dry,  moderately  firm  when 
moist,  and  plastic  and  sticky  when  wet;  roots  rather 
plentiful;  many  fine  and  medium  pores;  strongly  acid; 
gradual,  wavy  boundary;  horizon  is  6  to  12  inches 
thick. 

B22  Ifi  to  38  inches:  yellowish-red  (SYR  S/8)  silty  clay  loam 
to  clay  loam;  strong,  meciium,  blocky  structure;  very 
hard  when  dry,  firm  when  moist,  and  j)lastic  and  very 
sticky  when  wet;  few  roots;  many  fine  and  some 
medium  pores;  thick  self-colored  clay  skins  and  some 
black  films  on  aggregate  surfaces  and  in  pores  and 
root  channels;  very  strongly  acid;  gradual,  wavy  to 
irregular  boundary;  horizon  is  12  to  24  inches  thick. 

B3  38  to  46  inches:  variegated  vellowish-red,  reddish-vellow, 
yellow,  and  olive  (SYR  S/6,  7.SYR  6/6,  lOYR  7/6, 
and  5Y  5/3)  gritty  silty  clay  loam;  weak  to  moderate, 
coarse,  blocky  structure;  very  hard  when  dry,  firm 
and  somewhat  brittle  when  moist,  and  sticky  and 
plastic  when  wet;  very  few  roots;  many  fine  and 
some  medium  pores;  some  pores  and  aggregates  coat- 
ed with  yellowish-red  clay  skins  or  black  films;  very 
strongly  acid;  gradual,  wavy  to  irregular  boundary; 
horizon  is  6  to  15  inches  thick. 

C  46  to  60  inches  + :  yellowish-brown  (lOYR  5/8),  soft, 
decomposed  metabasalt  of  clay  loam  texture;  in- 
herited laminar  structure;  moderately  hard  or  hard 
when  dry,  firm  and  brittle  when  moist,  and  plastic 
and  sticky  when  wet;  some  red  clay  flows  and  a  few 
black  films  in  upper  part;  contains  some  fragments 
of  hard  metabasalt  schist;  strongly  acid. 

Some  of  the  Myersville  soils  are  deeper  than  the  profile 
described,  ranging  up  to  6  feet  or  more  of  solum  over 
the  substratum.   In  such  places  the  lower  subsoil  may 


WASllINCTON    COUNTY,  MAKVLAND 


45 


be  sonu'whiU  niorc  reddisli  than  tlic  one  dcsci-ilu'd.  Soinc 
•^ravtd  and  small  stones  are  comnion,  both  of  <fivenish 
metahasalt  and  of  while  <iiiai-t/,ile,  which  is  a  coninion 
impurity  in  the  metahasalt. 

Myeisville  channery  loam,  0  to  :i  percent  slopes 
(MvA). — The  profile  of  this  soil  dill'ers  from  that  of  the 
silt  loam  described  in  that  the  surface  layer  is  somewhat 
less  silty,  and  tlie  entire  soil,  ])art icidarly  the  surface 
layer,  contains  many  small,  flat  pieces  of  metahasalt  or 
fjreenstone.  Some  of  the  fra<;ments  are  hai-d,  and  some 
have  been  partly  dec<)mi)osed.  This  neai-ly  level  soil 
occupies  only  47  acres,  but  it  is  of  particular  im])ortance 
because  it  is' in  capability  unit  1-4.  The  soil  can  be  culti- 
vated regularly,  without' damafje,  if  ordinary  good  farm- 
in<r  methods,  including  rotations,  are  used. 

Myersville  channery  loam,  3  to  10  percent  slopes, 
moderately  eroded  (MvB2). — There  are  l,-VM  acres  of  this 
good,  geiillv  sloping  soil.  The  soil  is  in  capability  unit 
lIe-4. 

Myersville  channery  loam,  10  to  20  percent  slopes, 
moderately  eroded  (MvC2). — Special  management  to  con- 
trol or  prevent  erosion  is  necessary  to  keep  this  sloping 
soil  in  regular  cultivation.  There  are  1,676  acres,  in 
capability  imit  IIIe-4. 

Myersville  channery  loam,  20  to  30  percent  slopes, 
moderately  eroded  (MvD2). — On  this  strongly  slojiing  soil, 
there  is  a  hazard  of  erosion.  Occasional  cropping  can  be 
done  if  the  soil  is  kei)t  in  tight  vegetative  cover,  such  as 
hay  or  pasture,  most  of  the  time.  The  soil  occupies  418 
aci-es  and  is  in  capability  nnit  IVe-3. 

Myersville  channery  loam,  30  to  45  percent  slopes, 
moderately  eroded  (MvE2). — This  is  the  steepest  Myers- 
ville channery  loam.  Cultivation  should  not  be  attempted 
on  it  because  the  hazard  of  erosion  is  too  great.  The 
soil  will  produce  excellent  pasture  if  carefully  sodded  and 
not  overgrazed.  The  175  acres  are  in  capability  unit  VIe-2. 

Myersville  channery  silt  loam,  3  to  10  percent  slopes, 
severely  eroded  (MwB3). — This  soil  contains  some  inclu- 
sions of  Myersville  channery  loam  and  of  Myersville  silt 
loam.    There  are  i)'2  acres  in  capability  nnit  Ille— 1:4. 

Myersville  channery  silt  loam,  10  to  30  percent 
slopes,  severely  eroded  (MwD3). — This  soil  sliould  not  be 
cropped.  Pernument  sod  for  pasture  or  perhaps  occasion- 
ally for  hay  would  be  a  much  safer  use.  The  57  acres  are 
in  capability  unit  VIe-2. 

Myersville  silt  loam,  0  to  3  percent  slopes  (MxA). — 
This  soil  has  the  profile  that  is  described  as  representative 
of  the  series.  It  is  nearly  level,  contains  very  little  gravel, 
and  has  not  been  appreciably  eroded.  This  is  an  excellent 
soil  for  all  purposes.  The  131  acres  are  in  capability 
unit  1—4. 

Myersville  silt  loam,  3  to  10  percent  slopes,  moder- 
ately eroded  (MxB2). — This  soil  needs  protection  against 
erosion.   There  are  532  acres,  in  capability  unit  lie— 4. 

Myersville  silt  loam,  10  to  20  percent  slopes,  mod- 
erately eroded  (MxC2). — This  soil  is  strongly  sloping,  and 
it  needs  to  be  protected  against  erosion.  Fairly  long 
rotations  are  in  order.  The  soil  is  in  capability  unit 
Ille— 4.  It  occupies  153  acres. 

Myersville  very  stony  loam,  3  to  30  percent  slopes, 
moderately  eroded  (MyE2). — About  40  percent  of  the 
acreage  of  this  soil  is  occupied  by  stones  and  boulders 


of  greenstone,  some  l)urie(|  iind  manv  on  the  sui  face.  Tiie 
soil  is  too  stony  for  cult  i  vat  ion,  but  it  makes  good  pasture 
and  pel  haps  will  proilucesome  hay  crops.  Thei'e  aiv  1,42S 
aci-es,  in  capability  unit  VIs-2. 

Myersville  very  stony  loam,  30  to  5.')  percent  slopes, 
eroded  (MyF2).  -  Tiiis  soil  is  so  steep,  so  stony,  and  in  .^ome 
places  so  severely  eroded  that  grazing  is  not  practicable. 
It  occupies  147  aci-es  and  is  in  c;ipability  unit  VIIs-2. 

Philo  Series 

The  Philo  .series  consists  of  modeialely  well  cirained 
to  somewhat  poorly  drained  soils  of  the  flood  plains.  The 
soils  are  composed  of  fine  matei'ials  that  were  washed 
originally  from  areas  of  acid,  sedimentary  rocks,  chiefly 
sandstone  and  shale.  Although  the  soil  materials  below 
tlie  surface  layer  show  some  mottling  as  a  result  of  im- 
peded drainage  and  poor  aeration,  there  has  been  no  real 
soil  profile  development.  The  Pliilo  soils  are  mostly  in 
that  })ai't  of  the  county  west  of  Faii'\iew  .Mountain,  al- 
thougli  i)art  of  the  acreage  is  in  the  drainage  area 
of  Little  Antietam  Creek.  The  soils  consist  of  materials 
essentially  the  same  as  those  of  the  better  drained  Pope 
soils  and  the  more  poorly  drained  Atkins  soils  of  the 
same  areas. 

The  Philo  soils  are  moderately  extensive,  but  they  have 
not  been  intensively  used.  Some  hay  and  corn  are  grown, 
and  some  areas  are  in  pasture. 

Profile  of  Philo  silt  loam,  in  a  forested  area  near  the 
intersection  of  Draper  Road  and  Harvey  Road  North: 

A]  0  to  13  inches:  very  dark  grayish-brown  (lOYR  3'2)  silt 
loam;  very  weak,  fine  to  medium,  crumb  structure; 
hard  when  dry,  friable  when  moist,  and  slightly  plas- 
tic and  slightly  sticky  when  wet;  roots  abundant; 
medium  acid;  gradual,  smooth  boundary;  horizon  is 
10  to  16  inches  thick. 

Cig    13  to  20  inches:  dark  grayish-brown  (lOYR  4  2)  silt  loam; 

about  20  percent  fine,  faint  to  distinct  mottles  of 
dark  yellowish  brown  and  dark  olive  gray  (lOYR  4/4 
and  5Y  3/2);  very  weak,  fine  to  medium,  subangular 
blocky  structure;  hard  when  dry,  friable  to  firm  when 
moist,  and  moderately  plastic  and  slightly  sticky 
when  wet;  roots  rather  plentiful;  many  fine  and  me- 
dium pores;  strongly  acid;  clear,  smooth  boundary; 
horizon  is  9  to  12  inches  thick. 

Cag  20  to  40  inches  +:  dark  olive-brown  (2.5Y  4/2)  heavy 
silt  loam;  about  25  percent  very  coarse,  prominent 
blotches  of  yellowish  red  (5YR  4/6) ;  compound, 
weak,  coarse,  platy  and  very  weak,  fine  or  medium, 
flattened  blocky  structure;  hard  or  very  hard  when 
dry,  moderately  firm  when  moist,  and  moderately 
plastic  and  moderately  sticky  when  wet;  very  few 
roots;  strongly  acid;  grades  to  sandy  and  gravelly 
materials. 

The  texture  of  the  surface  layer  ranges  from  sandy  loam 
to  heavy  silt  loam,  and  some  areas  are  quite  gravelly.  In 
some  places  the  siibstratum  is  more  olive  colored  than  that 
described,  with  more  prominent  mottling  in  the  Cig 
horizon.  The  Philo  soils  are  normally  wet  for  considerable 
periods,  and  the  water  table  is  close  to  the  surface.  Some 
areas  are  flooded  rather  frequently. 

Philo  gravelly  sandy  loam  (Pg). — The  profile  of  this 
soil  differs  from  the  one  described  only  in  that  it  is  less 
silty  and  more  sandy  and  is  gravelly  throughout.  The 
gravel  is  mostly  waterworn  sandstone.  The  surface  layer 
tends  to  be  somewhat  more  sandy  than  the  substratum. 
A  few  areas  that  are  subject  to  frequent  floods  should  be 


46 


SOIL  SURVEY  SEItlKS    19  5!),    NO.  17 


mana<j:ed  for  sod  crops  and  grazing.  The  430  acres  are  in 
capability  unit  lI\v-7. 

Philo  silt  loam  (Ph). — The  profile  of  this  soil  is  the  one 
described  for  the  series.  Most  areas  are  nearly  level,  but 
in  many  places  the  slope  is  about  3  percent.  A  few  areas 
that  are  subject  to  frequent  floods  should  be  managed 
for  sod  crops  and  grazing.  There  are  1,254:  acres,  in 
capability  unit  IIw-7. 

Pope  Series 

The  Pope  series  consists  of  deep,  well-drained  soils  of 
the  flood  plains.  The  soils  are  made  up  of  the  same 
kind  of  materials  as  the  Philo  soils,  materials  that  were 
washed  originally  from  soils  on  acid  sandstone  and  shale. 
They  are  much  IxMtei-  drained  than  the  Philo  soils,  and 
do  not  show  any  evidence  of  soil-forming  processes  other 
than  some  darkening  of  the  surface  layer  by  organic 
matter. 

The  Pope  soils  are  extensive  in  the  county.  They  are 
mostly  in  the  western  part,  in  small,  widely  scattered 
areas  along  streams.  The  soils  are  nearly  all  in  use, 
chiefly  for  corn,  hay  crops,  and  ])asture,  but  some  small 
grains  are  grown  and  even  some  orchards. 

Profile  of  Pope  fine  sandy  loam,  in  an  area  of  grazed 
woods  in  the  flood  plain  of  Lanes  Run  near  its  crossing 
with  Licking  Creek  Koad : 

Ai  0  to  16  inches:  dark  grayish-brown  (lOYR  4/2)  fine  sandy 
loam;  weak,  medium,  crumb  structure;  moderately 
hard  when  dry,  friable  when  moist,  and  slightly  plas- 
tic and  slightly  sticky  when  wet;  roots  aVjundant; 
many  worm  channels;  slightly  to  medium  acid;  grad- 
vial,  smooth  boundary;  horizon  is  14  to  18  inches 
thick. 

C  16  to  4t)  inches:  brown  (lOYR  4/3),  heavy  fine  sandy  loam 
or  very  light  silt  loam;  compound,  very  weak,  me- 
dium, platy  and  weak,  medium,  cruml)  structure; 
hard  when  dry,  friable  when  moist,  and  moderately 
plastic  and  moderately  sticky  when  wet;  roots  plen- 
tiful in  upper  part;  medium  to  strongly  acid;  abrupt, 
wavy  boundary;  horizon  is  24  to  40  inches  thick. 

D  46  inches  +  :  interbedded  lavers  of  gravel  and  brown  sandv 
silt. 

There  is  some  variation  in  color.  In  some  places  the  C 
horizon  is  more  yellowish  brown  or  more  reddish  brown 
than  the  one  described.  The  reddish-brown  colors  are 
mostly  in  the  soils  in  the  extreme  western  part  of  the 
county,  where  at  least  part  of  the  soil  material  has  been 
washed  from  areas  of  Calvin  soils.  The  texture  ranges 
from  sandy  loam  to  silt  loam,  and  some  of  the  soils  are 
stony  or  gravelly,  or  both.  The  gravelly  D  horizon  is, 
in  some  places,  many  feet  below  the  surface. 

Pope  fine  sandy  loam  (Pn). — This  soil  has  the  profile 
that  is  described  in  detail,  and  it  is  the  most  extensive 
of  the  Pope  soils  in  the  county.  Although  there  is  some 
hazard  of  flooding,  this  soil  is  used  for  all  the  crops  com- 
monly grown.  A  few  areas  that  could  not  be  separated 
on  the  map  are  occasionally  or  frequently  flooded.  Their 
cropping  intensity  and  pattern  should  be  adjusted  to  the 
overflow  hazard.  There  are  1,793  acres  of  this  soil,  in 
capability  unit  1-6.  Most  areas  are  nearly  level,  but  in 
a  few  places  the  slope  is  as  great  as  8  percent. 

Pope  gravelly  loam  (Po). — This  soil  contains  less  sand 
and  more  gravel  than  Pope  fine  sandy  loam.  Most 
areas  are  nearly  level,  but  in  some  places  the  slope  is  as 


great  as  H  {)ei-cent.  There  are  436  acres  of  this  soil,  in 
capability  unit  L-6. 

l*ope  gravelly  sandy  loam  (Pp). — iiecause  this  soil  is 
sandy,  it  is  slightly  di-oiigiity.  There  are  446  acres  of  it. 
Most  of  the  soil  is  nearly  level,  but  some  of  it  has  slopes 
between  .')  and  S  percent,  'i'he  soil  is  in  capability  unit 
I  Is  2. 

Pope  silt  loam  (Ps). — This  Pope  soil  has  a  profile  more 
silty  and  less  sandy  than  the  one  described.  It  is  produc- 
tive and  suitable  for  practically  all  uses.  The  442  acres 
are  in  capability  unit  1-6.  A  few  areas  are  occasionally 
or  frequently  overflowed,  and  cropping  intensity  and  pat- 
tern should  be  adjusted  accordingly. 

Pope  stony  gravelly  loam  (Pt). — This  Pope  soil  is  too 
stony  for  normal  cultivation.  The  stones  were  probably 
washed  from  nearby  steep  slopes  during  former  heavy 
floods.  The  soil  can  be  so  managed  as  to  make  fairly  good 
grazing,  or  it  would  make  good  woodland.  Most  oJP  the 
soil  is  in  forest.  It  occupies  87  acres  and  is  in  capability 
unit  Vs-2. 

Rocky  Eroded  Land 

Areas  of  this  land  type  consist  of  very  severely  eroded 
remnants  of  rocky  to  extremely  rocky  Hagerstown  and 
Frankstown  soils  and  a  few  areas  of  Corydon  soils.  The 
areas  are  more  rocky  than  the  areas  of  Eroded  land,  lime- 
stone materials.  Kocky  eroded  land  is  shai  i)ly  limited  in 
usefulness,  and  its  t  reatment  is  difficult. 

Rocky  eroded  land  (Rk). — There  are  823  acres  of  this 
land  type,  in  capability  unit  VlIs-1.  Cultivation  is  im- 
possible, and  grazing  is  mostly  impracticable.  The  best 
use  for  this  land  would  be  to  have  it  reforested,  mostly  for 
watershed  protection,  although  there  might  be  some  re- 
turn from  tlie  woodland  products. 

Rohrersville  Series 

The  Rohrersville  series  consists  of  poorly  drained  soils 
that  were  developed  in  fine  materials  washed  from  areas 
of  Fauquier,  Myersville,  and  Highfield  soils.  The  fine 
materials  were  deposited  in  upland  depressions,  around 
heads  of  drains,  or  on  narrow  foot  slopes.  The  original 
source  of  the  fine  materials  was  the  metabasalt,  or  green- 
stone, that  was  weathered  to  form  the  parent  material 
of  those  soils. 

The  Rohrersville  soils  occur  only  in  small  areas,  but 
these  are  distributed  through  the  greenstone  areas  of  the 
county,  especially  in  Pleasant  Valley,  which  is  drained  by 
Israel  ('reek.  Where  drainage  can  be  improved  and  con- 
trolled, the  soils  are  well  suited  to  some  crops  and  are 
fairly  productive.  They  are  used  mostly  for  corn  and 
hay,  but  some  small  grain  crops  and  soybeans  are  pro- 
duced, and  some  areas  are  used  for  pasture. 

Profile  of  Rohrersville  silty  clay  loam,  0  to  8  perceiit 
slopes,  moderately  eroded,  in  a  cultivated  field  about  thre^- 
tenths  of  a  mile  southwest  of  Gapland: 

Ap  0  to  6  inches:  olive-brown  (2.5Y  4/4)  silty  clay  loam;  very 
weak,  platy  structure,  readily  crushing  to  weak,  fine 
and  medium  crumbs;  moderately  hard  to  hard  when 
dry,  friable  to  somewhat  firm  when  moist,  and  mod- 
erately plastic  and  moderately  sticky  when  wet;  roots 
abundant;  medium  acidj  clear,  smooth  boundary; 
horizon  is  5  to  7  inches  tliick. 


WASHINGTON   COUNTY,  MAHYLA.NI) 


47 


Ho,^  (i  to  15  inches:  U^hi  olivi'-brown  (2.5Y  5/4)  silly  cliiy 
loam;  about  30  percent  very  fine,  distinct  mottles  of 
Xray  and  strong  brown;  coniponnd,  weak,  nu'dium, 
plaiy  and  weak,  fine  to  medium,  blocky  structure; 
very  hard  when  dry,  firm  and  somewliat  brittle  when 
moist,  and  sticky  and  very  plastic  wlien  wet;  a  few 
roots;  strongly  acid;  al)rupt,  smootli  boundary;  hcjri- 
zon  is  8  to  12  inches  thick. 

B22£  15  to  36  inches  +  :  olive  (5Y  5/3)  sandy  clay  loam  to  sandy 
clay;  about  20  percent  medium,  distinct  mottles  of 
dark  brown  (7.5YII  4/4);  compound,  moderate, 
coarse,  platy  and  moderate,  medium,  irri'tjular,  blocky 
structure;  hard  when  dry,  firm  wlien  moist,  and 
plastic  and  sticky  when  w(?t;  no  visible  roots;  very 
slowly  permeable;  strongly  acid. 

Ill  some  places  there  are  recent,  t  liiii  deposits  ol"  waslied- 
iii  material  on  the  surface.  This  matei-ial  is  more  reddish 
than  that  in  the  i)roHle  described.  In  places  there  are 
soft,  iron  concretions  in  the  lower  subsoil.  Locally  the 
soils  are  tuiderlain  either  by  bedrock  or  by  an  old,  buried 
soil  that  is  within  .'5  or  4  feet  of  tlie  surface.  The  soils 
are  snbject  to  temporary  ])eriods  of  flooding  or  ponding. 

Rohrersville  silty  clay  loam,  0  to  8  percent  slopes, 
moderately  eroded  (RoB2). — This  is  the  only  soil  of  this 
series  in  the  county.  Erosion  has  been  active,  and  there 
are  some  rills  and  small  gullies.  Because  wetness  is  a 
greater  hazard  and  management  problem  than  tlie  risk 
of  erosion,  the  216  acres  are  in  capability  unit  IlIw-1. 

Stony  Land 

This  land  type  is  so  stony  and  bouldery,  contains  so 
many  outcrops  of  rock,  and  is  so  rough  that  its  uses  are 
strongly  limited.  In  general,  it  is  not  suitable  for  graz- 
ing and  does  not  produce  much  if  used  for  woodland. 
The  most  suitable  uses  are  for  wildlife  food  and  cover 
areas,  for  watershed  protection,  and  for  recreational  areas. 

The  small  amount  of  soil  between  the  stones  and  boul- 
ders may  resemble  a  soil  of  any  of  several  series,  generally 
the  Highfield,  Dekalb,  Chandler,  or  Edgemont  soils.  The 
rocks  are  all  acid  rocks  and  there  is  no  limestone. 

Stony  rolling  land  (Sr). — ^This  land  is  generally  in  for- 
est and  should  remain  so.  Slo|)es  range  to  as  much  as 
35  percent.  Although  the  land  is  not  ideal  for  forests, 
some  timber  can  be  produced.  High  yields  of  timber 
cannot  ordinarily  be  expected,  however,  and  the  growth 
of  seedlings  or  young  stock  will  be  slow  and  the  returns 
small.  Deer  and  other  wildlife  find  protection  in  these 
areas.  Since  most  of  the  areas  are  in  hilly  or  mountainous 
parts,  well  toward  the  heads  of  drainageways,  they  fur- 
nish watershed  protection  if  they  are  forested.  There 
are  4,643  acres,  in  capability  unit  VIIs-2. 

Stony  steep  land  (Ss). — Because  this  land  is  steep  and 
rough,  tree  i)laiiting  is  not  practicable,  and  production 
of  timber  will  be  slow.  In  addition,  the  land  is  so  rotigh 
that  little,  if  any,  economic  return  from  forest  products 
can  be  expected.  The  most  valuable  uses  of  this  land  will 
be  for  wildlife  and  for  watershed  protection.  The  2,857 
acres  are  in  capability  tinit  VIIIs-1. 

Talladega  Series 

The  Talladega  series  consists  of  shallow,  well-drained 
soils  on  highly  micaceous  schists.  In  Washington  County, 
however,  the  Talladega  soils  are  somewhat  deeper  than 


the  average  for  the  series  elsewhere.  They  werc!  devcloiied 
in  weathered  mica  schist  covered  by  surface;  d(;])f)si)s  of 
sandstone  material  that  is  probal)ly  colluvium  from  higher 
slopes.  The  Tiilladega  soils  occur  in  Wtishiiiglon  (  Vjunty 
on  intermediate  and  lower  slopes  and  benches  of  South 
Moinitain.  Oravel  is  common  in  the  light-colored  surface 
layers  of  the  soil,  but  it  is  absent  from  the  lower  sub.soil 
and  the  substratum,  which  contain  many  flat  fragments 
of  schist  or  phyllile. 

The  Talladega  soils  are  used  in  (his  county  for  a  variety 
of  crops.  They  appear  to  be  especially  desirable  for  berry 
crops  and  orchards  because  of  their  good  position  and 
air  drainage. 

Profile  of  Talladega  gravelly  silt  loam,  thick  solum 
variant,  0  to  20  percent  slopes,  moderately  eroded,  in  a 
forest  just  east  of  Moser  Road,  about  nine-tent  lis  of  a 
mile  south  of  its  intersection  with  Altei-nate  TT.S.  High- 
way No.  40: 

Ai  0  to  2  inches:  dark  reddish-brown  (SYR  2/2),  light  grav- 
elly silt  loam;  moderate,  fine,  crumb  structure;  soft 
to  slightly  hard  when  dry,  very  friable  when  moist,  and 
slightly  plastic  and  slightly  sticky  when  wet;  roots 
matted;  very  strongly  acid;  abrupt,  wavy  to  irregular 
boiuidary;  horizon  is  1  to  4  inches  thick. 

A2  2  to  7  inches:  yellowish-brown  (lOYR  5/4),  light  gravelly 
silt  loam;  weak,  fine,  crumb  structure;  moderately 
hard  when  dry,  friable  when  moist,  and  slightly  pla.s- 
tic  and  slightly  sticky  when  wet;  roots  jjlentiful;  many 
fine  and  mcfliuni  pores;  very  strongly  acid;  clear  to 
abrupt,  wavy  boundary;  horizon  is  4  to  8  inches  thick. 

B21  7  to  22  inches:  weakly  variegated  vellowish-brown  and 
yellowish-red  (lOYR  5/6  and  5YR  5/6),  gravelly  and 
somewhat  channery,  light  silty  clay  loam;  moderate, 
medium,  blocky  structure;  hard  when  dry,  friable  to 
firm  when  moist,  plastic  and  sticky  when  wet;  roots 
rather  few;  many  fine  and  some  large  pores;  this  ap- 
pears to  be  a  transition  between  the  soil  derived  from 
sandstone  or  quartzite  above  and  that  part  derived 
from  phyllite  below;  has  a  somewhat  greasy  feel;  con- 
tains considerable  fine  mica;  very  strongly  acid;  clear, 
wavy  to  irregular  boundary;  horizon  is  12  to  20  inches 
thick. 

B22  22  to  30  inches:  yellowish-red  (2.5 YR  5/8),  channery,  light 
silty  clay  loam;  compound,  very  weak,  coarse,  platy 
and  moderate  to  strong,  medium,  blocky  structure; 
hard  to  very  hard  when  dry,  firm  when  moist,  and 
plastic  and  sticky  when  wet;  very  few  roots;  many- 
fine  and  medium  pores;  contains  no  angular  gravel 
but  many  chips  and  fragments  of  phyllite  and  much 
finely  divided  mica;  strongly  acid;  clear,  irregular 
boundary;  horizon  is  6  to  15  inches  thick. 

C  30  to  42  inches  + :  marbled  vellowish-red  and  reddish- 
yellow  (5YR  5/8  and  7.5 YR  6/6),  decomposed  phyl- 
lite of  silty  clay  texture;  inherited  laminar  structure; 
hard  to  very  hard  when  dr\',  firm  when  moist,  and 
plastic  and  sticky  when  wet;  a  few  woody  roots;  con- 
tains considerable  hard  phyllite  and  an  abundance 
of  fine  mica;  strongly  acid. 

In  some  places  the  surface  layer  is  a  little  more  silty 
and  contains  less  gravel  than  the  one  in  the  profile  de- 
scribed. These  less  gravelly  areas  are  usually  at  the  lowest 
elevation.  In  wooded  areas  the  Ao  horizon  sometimes  has 
a  very  faint  or  weak,  platy  structure.  In  eroded  areas 
the  light-colored  surface  material  has  been  removed,  and 
the  exposed  new  surface  is  distinctly  reddish. 

Talladega  gravelly  silt  loam,  thick  solum  variant, 
0  to  20  percent  slopes,  moderately  eroded  (TaC2). — This 
is  the  most  extensive  Talladega  soil  in  the  county.  It 
has  the  profile  that  is  described.  Because  the  soil  is 
highly  susceptible  to  erosion  and  is,  at  best,  only  moder- 


48 


SOIL   SUHVEY    SKHIKS    1959,   NO.  17 


ately  deep  over  bedrock,  it  is  classilied  in  (■apahilit y  unit 
lIIe-10.  Tliis  means  that  it  may  be  cultivated  re<xidarly, 
but  only  in  I'airly  lonj;  rotations  with  very  careful  man- 
agement to  check  erosion.  This  soil  is  well  suited  to 
orchards  and  berry  croi)s.  There  are  Ti)4  acres  in  the 
county. 

Talladega  gravelly  silt  loam,  thick  solum  variant,  10 
to  20  percent  slopes,  severely  eroded  (TaC3). — This  soil 
has  been  severely  ei-oded  and  is  no  longer  well  suited  to 
cultivation.  An  occasional  tilled  crop  can  be  grown  in 
rotation  with  hay  or  pasture  plants,  and  the  soil  is  suited 
to  orchards  if  kept  in  sod  or  cover  crops.  There  aiv  5.'} 
acres,  in  capability  unit  IVe-10. 

Talladega  gravelly  silt  loam,  thick  solum  variant, 
20  to  30  percent  slopes  (TaD). — Tliere  has  been  little  ero- 
sion on  this  steep  soil,  sin(;e  the  areas  of  it  have  been 
exceptionally  well  managed  or  left  in  forest.  The  160 
acres  could  be  cultivated  occasionally,  as  long  as  the 
proper  management  is  maintained.  Tliis  soil  is  in  capa- 
bility unit  IVe-in. 

Talladega  gravelly  silt  loam,  thick  solum  variant, 
20  to  45  percent  slopes,  moderately  eroded  (TaE2). — This 
soil  is  steep,  and  erosion  has  been  active  but  not  severe. 
Tlie  danger  of  furtlier  loss  or  damage  is  so  great  that  the 
soil  should  not  be  cropped.  If  pi'0))erly  managed,  it  can 
be  safely  grazed.  This  soil  occui)ies  1 1 1  acres  and  is  in 
capability  unit  VIe-3. 

Teas  Series 

The  Teas  series  consists  of  somewhat  e.\cessi\  ely  di'ained 
to  excessively  drained,  shallow,  skeletal  soils  that  consist 
of  materials  weathered  from  dark-red  to  purplish-red 
sandstone  antl  shale  that  is  slightly  limy  in  places.  The 
Teas  soils  somewhat  resemble  the  soils  of  the  (^ilviii 
series,  but  they  ditl'er  chiefly  in  being  tliinner  and  shal- 
lower and  somewhat  iiiHuenced  by  lime. 

All  the  Teas  soils  of  this  county  are  in  mapping  units 
that  are  complexes  of  Litz  and  Teas  soils.  I^itz  soils 
make  np  between  50  and  60  percent  of  the  complexes, 
and  Teas  soils  the  remainder. 

Profile  of  Teas  channery  silt  loam,  3  to  15  percent 
slopes,  moderately  eroded,  in  an  orchard  about  one-half 
mile  south  of  Ringgold : 

Ap  0  to  6  inches:  dark  reddish-gray  (SYR  4  2)  channery  silt 
loam;  moderate,  fine,  crumb  structure;  slightly  hard 
when  dry,  friable  when  moist,  and  slightly  plastic 
and  slightly  sticky  when  wet;  roots  abundant; 
coarse  material  is  pinkish  to  purplish  sandstone  frag- 
ments and  some  shale;  slightly  acid;  clear,  smooth 
boundary;  horizon  is  4  to  6  inches  thick. 

B)  6  to  11  inches:  dark  reddish-brown  (SYR  3/2)  shaly  and 
very  channery  silt  loam;  very  weak,  fine  to  medium, 
subangular  Ijlocky  structure;  moderately  hard  when 
dry,  friable  when  moist,  and  slightly  plastic  and 
slightly  sticky  when  wet;  roots  common;  medium  acid; 
gradual,  wavy  boundary;  horizon  is  5  to  10  inches 
thick. 

C  11  to  20  inches:  fairly  soft  to  hard,  pinkish  and  purplish 
shale  and  fine-grained  sandstone  fragments;  infiltrated 
with  about  10  to  15  percent  fine  material  from  the  Bo 
horizon  above;  very  gradual  to  diffuse  Vjoundary; 
horizon  is  3  to  12  inches  thick. 

Dr  20  inches  -|- :  hard  purplish  shale  and  sandstone,  in  places 
weakly  calcareous  below  30  inches. 

Where  the  Teas  soils  blend  into  the  Litz  soils,  the  colors 
are  more  brownish  than  those  described. 


Terrace  Escarpments 

Throughout  Washington  ('ounty,  wherever  tliere  are 
alluvial  flood  plains,  there  are  some  narrow  and,  as  a 
rule,  small  areas  of  steep  land  made  up  of  alluvium. 
These  narrow  strips  are  most  commonly  the  sides  of 
draws  or  small  ravines  that  have  been  cut  through  the 
fi(K)d  plains  from  adjacent  uplands  down  to  the  main 
drainageways.  In  some  other  places,  they  are  the  short, 
sharp  slopes  from  one  level  of  a  flood  plain  to  another; 
for  example,  between  a  first  bottom  and  a  second  bottom 
or  low  terrace.  In  still  other  ))laces,  they  are  at  the  edge 
of  a  flood  plain  whei'e  it  adjoins  steep  or  very  steep 
uplands. 

Although  most  of  these  areas  are  small,  many  of  them 
ai'e  shown  on  the  soil  map.  They  may  be  made  up  of 
the  soils  of  several  .series,  including  Congaree,  Hunt- 
ington, Lindside,  Philo,  Pope,  or  Warners.  Although  the 
soil  materials  thus  vary  considerably,  these  areas  have 
one  characteristic  in  comnum — they  are  all  so  steep  and 
so  sul)ject  to  erosion  that  they  require  special  care  and 
management  if  they  are  cultivated. 

Terrace  escarpments  (Te). — All  of  the  areas  just  de- 
scribed have  been  included  in  this  one  mapping  unit. 
Because  of  the  danger  of  erosion,  they  have  been  placed 
in  capability  unit  IIIe-6.  The  mapi)ed  areas  amount  to 
341  acres.  In  most  areas  the  slope  is  between  8  and  25 
percent,  but  36  acres  have  slopes  greater  than  25  percent. 
If  all  areas  ai'e  treated  and  managed  according  to  prac- 
tices outlined  for  capability  unit  lIle-6,  they  should  be 
sufficiently  protected  for  practical  use  in  farming. 

Thurmont  Series 

The  Thurmont  series  consists  of  rather  deep,  well- 
di'ained  soils  that  developed  in  deposits  of  colluvial  rock 
debris.  The  rock  debris  contains  a  mixture  of  materials, 
chiefly  greenstone  or  metabasalt,  l)ut  it  includes  some  sand- 
stone and  quartzite.  The  Thurmont  soils  occur  on 
mountain  slopes  wherever  fragmented  rock  material  has 
accumidated,  notably  on  foot  slopes  and  on  intermediate 
benchlike  areas.  They  are  in  close  association  witli  the 
Braddock  soils.  Some  undifferentiated  areas  of  liraddock 
and  Thurmont  soils  have  been  described  under  the  Brad- 
dock  .series,  but  soils  of  the  Thurmont  series  also  occur 
by  themselves. 

The  Thurmont  soils  are  used  for  general  crops,  but 
they  seem  especially  desirable  for  orchards  and  berry 
crops,  chiefly  because  of  the  good  air  drainage  in  their 
side-slope  positions.  Some  vegetables,  such  as  tomatoes, 
are  also  grown  on  these  soils. 

Profile  of  Thurmont  gravelly  loam,  3  to  8  percent  slopes, 
moderately  eroded,  in  an  apple  orchard  on  Edgemont 
Road,  about  one-half  mile  south  of  the  Pennsylvania  State 
line : 

Ap  0  to  8  inches:  grayish-brown  (10 YR  5/2)  heavy  gravelly 
loam;  moderate,  fine,  crumb  structure;  moderately 
hard  when  dry,  friable  when  moist,  and  slightly  plas- 
tic and  slightly  sticky  when  wet;  roots  abunciant; 
slightly  acid;  clear,  smooth  to  wavy  boundary;  horizon 
is  S  to  8  inches  thick. 

B21  8  to  IS  inches:  light  yellowish-brown  (lOYR  6/4)  gravelly 
silt  loam;  moderate,  fine  to  medium,  subangular 
blocky  structure;  moderately  hard  when  dry,  rather 
friable  when  moist,  and  sticky  and  moderately  plas- 


WASIIIXCTOX    COrXTV.  NfAHYLAXI) 


49 


tic  when  wot  ;  roots  ahuiuiaiif ;  miiiiy  fine  and  iiicdiuMi 
and  some  larn(>  pores;  inedinni  acid;  n''ii<li'iil.  wavv 
bovmdarv;  liorizon  is  (1  to  10  inches  illicit. 

B22  15  to  31  inciies:  iinht  yeilowisli-hrown  (lOYR  6/41, 
gravelly,  gritty,  heavy  silt  loam;  moderate,  fine  to 
medium,  l)locky  sinirture;  hard  wiien  dry,  frial)le  to 
(irni  wluMi  moist,  moderately  jjl.'istic  and  moderately 
sticky  when  wet;  roots  few;  tliick,  nearly  continuous, 
self-colored  clay  skins;  medium  to  strongly  acid; 
gradual,  wavy  to  irregular  boundary;  horizon  is  12 
to  18  inches  thick. 

Kj  31  to  40  inches:  light  yellowish-brown  (lOYR  ()/4), 
gravelly,  very  gritty  silt  loam;  weak,  medium,  platy 
to  weak,  irregular,  l)locky  structure;  hard  when  dry, 
firm  when  moist,  and  sticky  and  moderately  plastic 
when  wet;  roots  few;  some  silt  and  clay  coatings  on 
aggregate  surfaces;  strongly  acid;  clear,  irregular 
boundary;  horizon  is  8  to  12  inches  thick. 

C  40  to  48  inches  +:  brown  (10 YR  5/3),  gravelly,  ex- 
tremely gritty  loam;  very  slightly  variegated  with 
gray  and  yellow;  very  weak,  medium  to  coarse, 
platy  structure;  hard  when  ciry,  firm  when  moist, 
and  slightly  plastic  and  slightly  sticky  when  wet; 
practically  no  roots;  very  strongly  acid. 

Gravel  consists  mostly  of  ojreenstone  or  metabasalt,  but 
in  places  there  are  many  fra<;ments  of  quartzite  or  sand- 
stone. In  some  places  the  subsoil  is  a  little  more  brown 
than  the  one  described. 

Thurmont  gravelly  loam,  Z  to  8  percent  slopes,  mod- 
erately eroded  (ThB2). — Tliis  soil  lias  the  profile  that  is 
descril)ed.  Erosion  has  been  active,  but  not  very  severe. 
The  4C()  acres  are  in  capal)ility  unit  IIe-4. 

Thurmont  gravelly  loam,  8  to  15  percent  slopes, 
moderately  eroded  (ThC2). — Tliis  soil  occupies  -J-ib  acres. 
It  is  in  capability  unit  IIIe-4. 

Trego  Series 

The  Trego  series  consists  of  moderately  well  drained 
soils  on  gravelly  deposits  of  quartzite,  sandstone,  and 
metabasalt  similar  to  those  that  were  parent  material  for 
the  Braddock  and  the  Thurmont  soils.  The  Trego  soils 
are  essentially  red,  like  the  Braddock  soils,  but  they  have 
a  thick,  platy  fragipan  in  tlie  lower  siibsoil  that  retards 
drainage  somewhat.  The  Trego  soils  were  named  as 
gravelly  silt  loam,  but  small  areas  of  silt  loam  and 
gravelly  loam  are  present. 

These  soils  are  not  extensive.  They  are  used  for  general 
crops  and  for  orchards,  altliough  some  ai'eas  are  in  forest. 

Profile  of  Trego  gravelly  silt  loam,  3  to  15  percent 
slopes,  moderately  eroded,  in  a  young  second-growth 
forest  area  along  old  U.S.  Highway  No.  40,  two-tenths 
of  a  mile  west  of  its  intersection  with  the  new  U.S.  High- 
Avay  No.  40,  in  the  Mount  I^ena  community : 

Alp     0  to  5  inches:  dark-brown  (lOY'R  3/3)  gravelly  silt  loam; 

moderate,  fine,  crumb  structure;  slightly  hard  when 
dry,  friable  when  moist,  and  slightly  plastic  and 
slightly  sticky  when  wet;  roots  fairly  abundant; 
slightly  acid;  clear,  smooth  boundary;  horizon  is 
4  to  6  inches  thick. 

A2  5  to  11  inches:  dark  yellowish-brown  (lOYR  4/4)  grav- 
elly loam;  compoimd,  very  weak,  fine,  platy  and 
moderate,  very  fine,  crumb  to  granular  structure; 
slightly  hard  when  dry,  friable  when  moist,  and 
slightly  plastic  and  slightly  sticky  when  wet;  roots 
rather  plentiful;  medium  acid;  gradual,  wavy  bound- 
ary; horizon  is  5  to  10  inches  thick. 

Bi  11  to  21  inches:  reddish-yellow  (7.5Y'R  6/8),  gravelly, 
gritty,  heavy  loam  to  light  sandy  clay  loam;  a  few 
faint  streaks  of  yellowish  red  (5Y'R  5/8) ;  compound, 
weak,  medium,  platy  and  strong,  fine  to  medium, 


irregular,  blocky  Htructurt;;  nioth-rateiy  harfl  to  hard 
and  brittle  when  dry,  moderately  firm  and  brittle 
when  moist,  and  moderately  plastic  and  moderafelv 
sticky  when  wet;  roots  few;  many  firi(!  and  merliuni 
|)ores;  v(;ry  strongly  acid;  gradual,  wavy  bcjundury; 
horizon  is  7  to  10  inches  thick. 

Ho|,n  21  to  2!)  inches:  yeliowish-rcfi  (5YR  5/8),  gravelly,  verv 
gritty  sandy  clay  loam;  ratlKir  strongly  streaked 
with  reddish  yellow  (7. SYR  6/8);  coinpound,  moder- 
ate to  strong,  medium,  platy  and  very  irr<;gular, 
blocky  structure;  hard  and  brittle  when  dry,  firm 
and  brittk^  when  moist,  and  plastic  and  sticky 
when  wet;  practically  no  roots;  vc^ry  strongly  acid; 
gradual  to  clear,  wavy  to  irregular  boundary;  hori- 
zon is  6  to  12  inches  thick. 

B22m  29  to  36  inches:  rcnl  (2.5YR  4/8),  gravelly,  gritty,  sandy 
clay  loam;  moderately  streaked  horizontally  with 
yellowish  brown  and  strong  brown  (lOYR  .5/6  and 
7.5YR  5/6);  compound,  strong,  medium,  jilaty  and 
strong,  fine,  irregular,  l;locky  structure;  very  hard 
but  brittle  when  dry,  firm  to  very  firm  but  Ijrittle 
when  moist,  and  plastic  and  sticky  when  wvA;  no 
roots;  very  strongly  acid;  clear  to  abrupt,  wavy  to 
broken  boundary;  horizon  is  0  to  12  inches  thick, 
being  absent  in  some  places. 

C  36  to  48  inches  +:  pale-yellow  (2.5YR  7,4)  gravelly 
very  fine  sandy  clay  loam;  a  few  horizontal  streaks 
of  reddish  brown  (5YR  5  4);  weak,  very  coarse, 
platy  structure;  hard  to  very  hard  but  brittle  when 
dry,  very  firm  but  brittle  when  moist,  and  plastic 
but  only  slightly  sticky  when  wet;  no  roots;  very 
strongly  to  e.xtremely  acid. 

The  surface  layer  in  some  places  is  moie  reddish  than 
the  one  described,  and  the  subsoil  is  somewhat  more 
yellowish.  The  tliickness  of  all  horizons  and  the  grade 
of  their  structure  are  variable.  The  lower  subsoil,  or 
Boom  horizon,  in  many  places  is  discontinuous.  It  is 
present  in  some  places  but  absent  in  others.  The  Trego 
soils  blend  more  or  less  gradually  with  the  nonplaty 
Braddock  and  Tliurmont  soils. 

Trego  gravelly  silt  loam,  0  to  .3  percent  slopes  (TrA). — 
These  more  or  less  level  areas  of  the  Trego  soils,  even 
though  they  are  moderately  well  drained,  tend  to  l^e  wet 
at  times  because  of  their  slow  permeability.  This  wetness 
is  more  of  a  problem  than  erosion  on  the  more  level  areas. 
The  soil  is,  therefore,  in  capability  unit  IIw-1 :  there  are 
89  acres. 

Trego  gravelly  silt  loam,  3  to  1.5  percent  slopes,  mod- 
erately eroded  (TrC2). — This  soil  has  the  profile  that  is 
described  for  the  series.  On  these  sloj^es  there  has  been 
active  erosion,  and  the  erosion  hazard  is  more  critical 
than  the  drainage  problem.  The  252  acres  are  in  capa- 
bility unit  IIIe-13. 

Tyler  Series 

Tlie  Tyler  series  consists  of  poorly  drained  soils  on 
old  alluvial  terraces  that  consist  of  materials  washed 
originally  from  areas  of  soils  on  sandstone  and  shale. 
The  Tyler  soils  occur  on  fairly  smooth  river  and  stream 
terraces  in  the  western  part  of  tlie  comity.  On  tliese  same 
terraces  are  the  moderately  well  drained  Monongahela 
soils  and  the  well  drained,  brown  Holston  and  red 
Waynesboro  soils.  The  fine-textured  parent  materials  of 
the  Tyler  soils  were  deposited  in  quiet  water  or  in  slack 
water,  and  the  soils  have  a  very  fine  textured  subsoil. 

Tyler  soils  are  very  difficult  to  cultivate  or  plow  when 
either  slightly  too  wet  or  slightly  too  dry.  However,  most 
areas  are  used  for  late  corn,  but  some  are  in  pastui'e. 


ol) 


SOIL  SURVKY   SKHIKS    IQSO,  NO.  17 


Profile  of  Tyler  silt  loam,  in  a  once  cultivated  hut 
now  idle  area,  1%  miles  east  of  Orchard  Kidge  Koad, 
on  a  terrace  of  Licking;  Creek : 

A  I,     0  to  5  inches:  dark  grayisli-hrovvn  (2.5Y  4/2)  silt  loam; 

strong,  fine,  flatteiu'd,  crumb  or  very  fine,  platy 
structure;  moderately  hard  when  dry,  friable  when 
moist,  and  inoderalely  plastic'  and  moderately  sticky 
when  wet;  roots  fairly  abundant;  very  strongly  to 
extremely  acid;  clear,  smooth  boundary;  horizon  is 
5  to  ()  inches  thick. 

B.g    5  to  12  inches:  pale-olive  (5Y  ()/3)  fine  silty  clay  loam; 

about  50  percent  fine  to  medium,  distinct  mottles  of 
grayish  l)rown  (2.5Y  5/2) ;  compound,  moderate, 
medium,  platy  and  weak,  fine,  sul)angular  blocky 
structure;  hard  when  dry,  somewhat  firm  and  t)rittle 
when  moist,  and  plastic  and  sticky  when  wet;  few 
roots;  very  strongly  to  extremely  acid;  clear,  smooth 
boundary;  horizon  is  6  to  10  inclies  thick. 
12  to  25  inches:  olive-gray  (5Y  5/2)  fine  clay  loam;  about 
50  percent  medium  to  coarse,  prominent  mottles  of 
yellowish  l)rown  (lOYR  5/8);  compound,  moderate, 
medium,  platy  and  moderate,  fine,  blocky  structure; 
very  hard  when  dry,  firm  and  brittle  when  moist,  and 
plastic  and  sticky  when  wet;  very  few  roots;  extremely 
acid;  clear,  smooth  boundary;  horizon  is  12  to  15 
inches  thick. 

C„  25  to  42  inclies  h  :  dark-gray  (N  4/0,  with  a  bluish  cast) 
clay;  20  to  30  percent  coarse,  prominent  mottles  of 
yellowish  brown  (lOYR  5/0);  compound,  very  weak, 
coarse,  platy  and  weak,  medium,  l)locky  structure; 
very  hard  when  dry,  firm  but  not  brittle  when  moist, 
and  sticky  and  plastic  when  wet;  no  visible  roots 
or  pores;  extremely  acid;  several  feet  thick. 

In  some  places  the  surface  layer  is  more  hrownish  than 
the  one  in  the  profile  described,  and  the  lo^ver  horizons 
are  somewhat  less  line  textured  and  plastic. 

Tyler  silt  loam,  0  to  8  percent  slopes  (TyB). — This  is 
the  only  Tyler  soil  in  the  county.  Because  poor  drainajje 
and  wetness  are  greater  hindrances  to  use  than  the  hazard 
of  erosion,  it  is  in  capability  unit  IIIw-1.  The  area  is 
127  acres. 

Warners  Series 

The  Warners  series  consists  of  deep,  dark-colored,  very 
limy  soils  of  the  flood  plains.  The  soils  are  made  up  of 
fine  materials  washed  from  areas  of  limestone  rocks,  and 
they  are  ])()orly  drained  to  moderately  well  drained.  The 
soils  contain  rather  large  accumulations  of  organic  mat- 
ter. The  ai'eas  occupied  by  Warners  soils  were  probably 
once  swampy  or  ponded,  but  they  have  been  filled  in  by 
deposits  of  soil  imtil  the  surface  is  now  well  above  the 
water  level.  On  the  same  flood  plains  are  soils  of  the 
Lindside,  Melvin,  and  Dunning  series,  and,  on  some,  soils 
of  the  Huntington  series. 

The  Warners  soils  are  moderately  fertile  and  produc- 
tive, but,  because  of  their  strong  alkalinity,  they  may 
lack  certain  minor  plant  food  elements,  such  as  manganese, 
that  are  necessarj'  for  strong  and  healthy  crops.  The 
substrata  of  these  soils  are  sometimes  removed  and  used 
as  sources  of  lime,  leaving  borrow  pits  or  barren  areas. 

The  Warners  soils  are  used  for  hay,  pasture,  and  corn, 
and,  to  a  lesser  extent,  for  other  crops. 

Profile  of  Warners  loam,  in  a  cultivated  flood  plain  of 
West  Branch  of  Marsh  Run,  about  100  yards  north  of 
State  Road  No.  60,  in  the  Longmeadow  community : 

Alp   0  to  8  inches:  dark  grayish-brown  (lOYR  4/2)  loam; 

strong,  medium,  granular  structure;  moderately  hard 
when  dry,  friable  when  moist,  and  sticky  and  mod- 


erately plastic  when  wet;  roots  abundant;  numerous 
worm  channels;  moderately  alkaline  and  slightly 
calcareous;  gradual,  smooth  boundary;  horizon  is  7 
to  10  inclies  thick. 

Ai2  8  to  38  inches:  dark  grayish-brown  (2.5Y  4/2)  loam;  mod- 
erate, medium,  granular  structure;;  moderately  hard 
to  hard  when  dry,  friable  to  somewhat  firm  when 
moist,  and  sticky  and  moderately  plastic  when  wet; 
roots  ])lentiful  in  upper  part;  many  fine  and  medium 
I)ores  and  some  worm  cliannels;  moderately  alkaline 
and  calcareous;  clear  to  abrupt,  wavy  boundary; 
horizon  is  24  to  36  inches  thick. 

Cig  38  to  48  inches:  pale-brown  (lOYR  0/3),  shelly  and  fine, 
gravelly  marl  of  varial)le  texture  but  mostly  clay 
loam;  about  20  j)ercent  medium,  distinct  mottles  of 
light  gray  (2.5Y  7/2);  weak,  medium,  stratified  struc- 
ture; hard  to  very  hard  when  dry,  firm  when  moist, 
and  very  plastic  and  very  sticky  when  wet;  a  few 
roots  in  upper  part;  mottling  disappears  on  drying; 
moderately  to  strongly  alkaline  and  strongly  cal- 
careous; clear  to  abrupt,  wavy  boundary;  horizon  is 
f)  to  12  inches  thick. 

Cjg  48  to  00  inches  +:  pale-brown  (lOYR  6/3)  fine  gravelly 
silty  clay  to  clay;  alxjut  20  percent  coarse,  distinct 
mottles  of  dark  brown  (lOYR  4/4);  massive;  hard 
when  dry,  firm  when  moist,  and  plastic  and  sticky 
when  wet;  no  roots;  less  calcareous  than  C|g  horizon, 
containing  few,  if  any,  shells;  moderately  to  strongly 
alkaline. 

T'ndisturbed  areas  have  a  darker  .siiiface  layer,  and 
some  cultivated  areas  have  a  lighter  colored  surface  layer 
than  tiie  one  de.sci'ibed.  Shells,  mostly  of  fresh- water 
snails,  are  found  within  2-1  inches  of  the  surface,  and,  in 
some  place.s,  as  clo.se  as  4  inches  below  the  surface.  There 
is  .some  variation  in  drainage,  and  some  wet  areius  could 
not  be  shown  on  the  map. 

Warners  loam,  0  to  8  percent  slopes  (Wo). — This  soil 
has  the  profile  that  is  described.  Because  it  is  sometimes 
wet,  and  is  subject  to  possible  flooding,  it  is  placed  in 
capability  unit  IIw-7.  There  are  1,646  acres.  A  few 
areas  may  have  frequent  floods. 

Waynesboro  Series 

The  Waynesboro  series  consists  of  deep,  well-drained, 
red  soils  on  river  terraces.  The  Waynesboro  soils  have 
been  developed  in  very  old  alluvial  deposits  of  materials 
that  were  washed  originally  from  areas  of  acid  rocks, 
mosth'  sandstone.  In  Washington  County  they  are  almost 
exclusively  on  high  terraces  of  the  Potomac  River,  where 
they  are  present  along  with  soils  of  the  Holston  and 
Monongahela  series. 

Although  the  Waynesboro  soils  are  very  strongly  acid 
or  extremely  acid,  they  are  fairly  productive  if  limed  and 
properly  managed.  Large  areas  of  AVaynesboro  soils  are 
used  for  general  crops  and  pasture,  and  some  areas  are 
in  orchards. 

Profile  of  Waynesboro  gravelly  loam,  0  to  3  percent 
slopes,  in  a  forested  area  just  off  State  Road  No.  56, 
about  50  yards  west  of  the  entrance  of  Fort  Frederick 
State  Park: 

Ai  0  to  3  inches:  black  (5YR  2/1)  gravelly  loam;  weak  to 
moderate,  fine,  granular  structure;  very  slightly  hard 
when  dry,  very  friable  when  moist,  and  slightly  plas- 
tic and  slightly  sticky  when  wet;  roots  abundant; 
very  strongly  acid;  abrupt,  wavy  boundary;  horizon 
is  2  to  4  inches  thick. 

.^2  3  to  8  inches:  brown  (lOYR  5/3)  gravelly  loam;  weak  to 
moderate,  fine,  crumb  structure;  slightly  hard  when 
dry,  friable  when  moist,  and  slightly  plastic  and 


WA.SHIN(iT{)N   COUNTY,  MARYLAND 


slif?htly  .sticky  when  wet  ;  roots  rattu-r  plentiful;  inaiiy 
fine  and  iiuidiiun  and  some  larRC  pores;  very  strongly 
aeid;  clear,  wavv  boundary;  horizon  is  4  to  (1  inches 
thick. 

B21  8  to  14  inches:  reddish-yellow  (5YR  ('1/8),  gravelly,  heavy 
silt  loam;  moderate,  medium,  subaiigular  blocky 
slructAire;  moderately  iiard  when  dry,  friable  to  firm 
when  moi.st,  and  plastic  and  sticky  when  wet;  roots 
few;  many  fine  and  medium  pores;  extremely  acid; 
gradual,  wavv  boundary;  horizon  is  (>  to  9  inches 
thick. 

B22  14  to  35  inches:  red  Ci.SVR  5/8)  gravelly  silty  clay  loam 
or  gravelly  clay  loam;  very  slightly  variegated  with 
liglUer  red  in  lower  ]):\r{  ;  strong  to  very  strong, 
m(>dium,  blocky  structure;  \  er\'  hard  when  dry,  firm 
when  moist,  and  plastic  and  sticky  when  wet;  very 
few  roots;  many  fine  and  medium  pores;  self-colored, 
contiinious  clay  skins  in  pores  and  on  aggregate  sur- 
faces: e\t  icnielN-  acid;  clear,  wavy  boundary;  horizon 
is  18  to  :W  incliVs  thick. 

C  35  to  42  inclies  1  :  red  (2.5YR  4/8)  very  gravelly  sandy 
clay  loam;  stratified;  moderately  hard  when  dry,  fri- 
able to  firm  when  moist,  and  slightly  i^lastic  and 
slightly  sticky  when  wet;  no  roots:  moderately  to 
moderately  rapidly  permeable;  extremely  acid. 

Some  spots  are  somewhat  less  gravelly  than  the  soil 
described,  iuid  in  some  places  tlie  surface  layer  is  sonle^vll!lt 
more  silty.  In  some  places  the  soil  is  not  so  intensely 
red  in  the  lower  subsoil  and  substratum,  but  it  is  some- 
what more  yellowish  or  brownish.  The  yellow  or  brown 
color  is  most  common  where  the  Waynesboro  soils  grade 
to  Holston  soils. 

Waynesboro  gravelly  loam,  0  to  3  percent  slopes 
(WbA). — This  soil  has  the  profile  that  is  described  for  the 
series.  Because  it  is  well  drained,  of  good  texture,  and 
nearly  level,  it  has  no  particidar  limitation  for  cultivated 
crops.  Proper  fertilizing  and  liming,  along  with  general 
good  management,  are  necessary  for  good  yields  of  crops. 
The  166  acres  are  in  capability  unit  I^. 

Waynesboro  gravelly  loam,  0  to  8  percent  slopes, 
moderately  eroded  (WbB2). — Because  of  the  danger  of 
erosion,  this  soil  is  in  capability  unit  IIe-4.  There  are 
2,387  acres. 

Waynesboro  gravelly  loam,  8  to  15  percent  slopes, 
moderately  eroded  (WbC2). — On  these  slopes,  practices 
and  management  to  control  erosion  are  needed.  Long 
rotations  should  be  used  and  contour  tillage  and  other 
methods  of  erosion  control  carried  out.  The  1,490  acres 
are  in  capability  unit  Ille^. 

Waynesboro  gravelly  loam,  3  to  15  percent  slopes, 
severely  eroded  (WbC3). — Intense  good  management  is 
needed  on  this  soil  to  prevent  further  erosion.  The  soil 
occupies  475  acres  and  is  in  capability  unit  IIIe-44. 

Waynesboro  gravelly  loam,  15  to  25  percent  slopes, 
moderately  eroded  (WbD2). — This  soil  is  steep  enough  so 
that  there  is  great  danger  of  erosion.  It  is  in  capability 
unit  IVe-3.  There  are  236  acres. 

Waynesboro  gravelly  loam,  15  to  25  percent  slopes, 
severely  eroded  (WbD3). — On  this  soil,  erosion  has  been 
severe.  If  the  soil  is  carefully  protected,  it  makes  good 
hay  land,  permanent  pasture,  or  orchards.  The  322  acres 
are  in  capability  unit  VIe-2. 

Waynesboro  gravelly  loam,  25  to  45  percent  slopes, 
moderately  eroded  (WbE2). — This  soil  is  too  steep  for 
safe  cultivation.  It  can  be  grazed,  however,  if  well  sodded 
and  managed.  There  are  98  acres,  in  capability  unit  VIe-2. 

Waynesboro  gravelly  sandy  loam,  0  to  8  percent 
slopes  (WgB). — This  soil  has  a  profile  like  the  one  de- 


scribed for  (he  series,  except  that  it  is  mon;  sandy 
throughout,  especially  in  the  surface  layer.  Drouglit iness, 
because  of  the  sand,  is  a  more  important  managenuint 
problem  than  the  danger  of  erosion.  For  this  reason, 
the  125  acres  are  in  capability  unit  Ils-2. 

Waynesboro  gravelly  sandy  loam,  3  to  15  percent 
slopes,  moderately  eroded  (WgC2). —  Danger  dI'  erosion 
is  more  critical  on  this  soil  tlian  the  sandiness,  but  the 
sand  also  allects  the  nianagemcnl .  Tlierc  arc  628  aci-es, 
in  capability  unit  lIIe-5. 

Waynesboro  gravelly  sandy  loam,  8  to  15  percent 
slopes,  severely  eroded  (WgC3). — The  soil  can  be  culti- 
vated, but  only  occasionally  and  with  special  manage- 
ment. The  103  acres  are  in  capability  unit  IVe-5. 

Waynesboro  gravelly  sandy  loam,  15  to  25  percent 
slopes,  moderately  eroded  (WgD2). — The  threat  of  ero- 
sion is  great  enough  on  this  steep  soil  so  that  the  soil 
is  in  capability  unit  IVe-5.  There  are  137  acres. 

Wehadkee  Series 

The  Wehadkee  series  consists  of  poorly  drained,  very 
acid  soils  of  flood  plains.  The  Wehadkee  soils  consist  of 
fine  materials  that  were  washed  originally  from  areas 
of  soils  on  crystalline  rocks.  Most  areas  of  Wehadkee 
soils  in  Washington  County  are  in  the  southern  part,  on 
both  sides  of  Elk  Ridge.  On  the  same  bottom-land  areas 
are  the  moderately  well  drained  Chewacla  soils  and  the 
well  drained  Congaree  soils.  Because  they  generally 
occur  in  narrow  strips  along  smaller  streams,  many 
ai'eas  of  Wehadkee  soils  have  not  been  cleared.  Some 
areas  are  used  for  corn,  pasture,  or  natural  meadow. 

These  soils  are  poorly  drained  and  are  very  wet  for  long 
periods  because  of  both  impermeable  substrata  and  a  high 
water  table.  They  are  not  extensive  and  are  of  little 
importance  in  agriculture. 

Profile  of  Wehadkee  silt  loam,  in  a  willow  and  alder 

thicket  on  the  flood  plain  of  Israel  Creek,  about  1  mile 

northwest  of  Gapland: 

All    0  to  5  inches:  dark  grayish-brown  (2.5Y  4/2)  silt  loam; 

weak,  medium,  crumb  structure;  hard  when  dry,  fri- 
able to  firm  when  moist,  and  slightly  jjlastic  and 
slightly  sticky  when  wet;  roots  plentiful;  strongly 
acid;  clear,  smooth  boundary;  horizon  is  5  to  6  inches 
thick. 

A,  2    5  to  12  inches:  dark  yellowish-brown  (lOYR  4/4)  silt 

loam;  about  10  percent  medium,  faint  specks  of  gray; 
weak,  fine  to  medium,  platy  structure;  very  hard 
when  dry,  moderately  firm  and  slightly  brittle  when 
moist,  and  moderately  plastic  and  slightly  sticky 
when  wet;  roots  fairly  plentiful;  very  strongly  acid; 
clear  to  abrupt,  smooth  boundary;  horizon  is  6  to  8 
inches  thick. 

B,  g    12  to  28  inches:  light  olive-brown  (2.5Y  5/4),  light  silty 

clay  loam;  about  30  percent  fine  and  medium,  dis- 
tinct mottles  of  strong  brown  (7.5YR  5  6)  and  of 
bluish  gray;  moderate,  medium  to  coarse  platy 
structure;  very  hard  when  dry,  firm  and  rather  brit- 
tle when  moist,  and  plastic  and  sticky  when  wet;  few 
roots;  slowly  permeable;  very  strongly  acid;  abrupt, 
wavy  to  irregular  boundary;  horizon  is  12  to  30 
inches  tliick. 

Dg  28  to  36  inches  +  :  variegated  dark  olive-gray  (5Y'  4/2) 
and  bluish-green  fine  sandy  clay:  5  to  10  percent 
fine,  reddish-brown  specks,  and  reddish-brown  linings 
in  the  few  old  root  channels:  massive;  very  hard  to 
extremely  hard  when  dry,  firm  when  moist,  and  sticky 
and  very  plastic  when  wet;  very  slowly  permeable  to 
extremely  slowly  permeable,  bluish-green  color  fades 
completely  to  gray  on  drying;  strongly  acid. 


52 


SOIL  SURVEY   SERIES    1959,  NO.  17 


The  bluisli-fjreen  color  is  not  present  everywliere  in 
the  substraluni.  Locall}',  there  may  he  an  overwasli  of 
very  new  material,  some  of  it  very  thin,  and  most  of  it 
sandy- 

Wehadkee  silt  loam  (Wh). — This  is  the  only  Wehadkee 
soil  mapped  in  the  county.  It  is  subject  to  occasional 
lloodin<>-,  but,  if  the  (h'aina<i'e  is  improved,  fairly  <jo()d 
yields  of  corn,  hay,  or  past\ire  can  be  obtained.  The  bS."! 
acres  are  in  capability  unit  IIIw  1.  A  few  areas  ai'e 
Hooded  frecjuently  and  should  bi'  maintained  in  pei  inaneni 
<xrass  or  woodland. 

Westmoreland  Series 

Tlu^  West  nioreland  series  consists  of  (Un^p,  well-di-ained 
soils  developed  in  materials  weathered  from  mixtures 
of  acid  ami  limy  shale,  with  occasional  inclusions  of 
sandstone  and  hard,  <rray  limestone.  These  materials 
•generally  occur  in  altei'nate  bands  across  soil  areas, 
with  the  shale,  as  a  rule,  in  wide  bands  and  the  sandstone 
or  limestone  in  fairly  narrow  bands.  The  Westmoreland 
soils  are,  therefore,  somewhat  vai'iable  in  characteristics, 
particulai-ly  in  the  lower  subsoil  and  the  substratum. 
These  soils  are  on  nearly  level  to  sti'on<;ly  sloping  rid<res 
in  the  western  part  of  the  county,  <>:enerally  alon<j!'  with 
soils  of  the  Lit/  series. 

The  "Westmoreland  soils  are  not  vei-y  extensive.  They 
are  very  good  agricultural  soils  and  are  used  for  nearly 
all  crops,  including  orchards. 

Profile  of  Westmoreland  channery  silt  loam,  3  to  10 
percent  slopes,  modei-ately  eroded,  in  a  forest  just  north 
of  Tonoloway  Creek  Koad,  about  2  miles  northwest  of 
Hancock : 

A]  0  to  2  inches:  black  (lOYR  2'1),  lislit  cliannery  silt  loam: 
moderate,  fine,  crumb  structure;  soft  when  dry,  very 
friable  when  moist,  and  nonplastic  and  nonsticky  wiien 
wet;  roots  abundant;  slightly  acid;  abrupt,  wavy 
boundary;  horizon  is  2  to  3  inches  thick. 

A2  2  to  (1  inches:  sjrayisli-ljrown  (lOYR  5/2),  light  channery 
silt  loam;  moderate,  fine,  granular  structure;  sliglitly 
hard  when  dry,  very  friable  when  moist,  and  slightly 
plastic  and  slishtly  sticky  when  w(>t ;  roots  plentifuj; 
medium  acid;  cle:ir,  wavy  Ijoundary;  horizon  is  3  to  5 
inches  tliick. 

Bi  G  to  14  inches:  brown  (lOYR  4/3),  heavy  channery  silt 
loam;  moderate,  fine,  blocky  and  subangular  blocky 
structure;  moderately  hard  when  dry,  friable  or  some- 
what firm  when  moist,  and  moderately  plastic  and 
moderately  sticky  when  wet;  roots  fairly  plentiful; 
many  fine  and  medium  pores;  medium  acid;  gradual, 
wavv  boundarv;  horizon  is  6  to  9  inches  thick. 

Bi    14  to  32  inches:  brown  (7.5YR  5/4),  shaly  silty  clay  loam; 

moderate  to  strong,  fine  and  medium,  blocky  and  sub- 
angular  blocky  structure;  moderately  hard  to  hard 
when  dry,  friable  to  firm  when  moist,  and  plastic 
and  sticky  when  wet;  roots  few;  many  fine  and  medi- 
um pores;  thin,  almost  continuous,  self-cclored  clay 
skins;  medium  to  strongly  acid;  clear,  wavy  boundary; 
horizon  is  12  to  20  inches  thick. 

C  32  to  42  inches:  strong-brown  (7.5Y'R  5/6),  very  shaly 
loam  or  light  silt  loam;  very  weak,  fine,  blocky  struc- 
ture; moderately  hard  when  dry,  friable  when  moist, 
and  slightly  plastic  and  slightly  sticky  when  wet;  a 
few  roots  in  upper  part;  about  40  percent  shale; 
slightly  to  medium  acid;  gradual,  irregular  boundary; 
horizon  is  6  to  15  inches  thick. 

Dr   42  inches  -|- :  hard,  slightly  calcareous,  brown  shale. 

Ill  some  places  the  surface  layer  contains  few  coarse 
fragments.    In  places  where  there  is  an  underlying  band 


of  red  sandstone,  the  subsoil  and  subsfratinn  are  more 
reddish  than  tiiose  described.  The  Westmoreland  soils 
geiu'rally  grade  to  suiiounding  soils  without  sharp 
boiuularies. 

Westmoreland  channery  silt  loam,  3  to  10  percent 
slopes,  moderately  eroded  (WmB2). — This  soil  has  the 
pi'olile  dcsci  ibed.  Tlieiv  is  a  hazard  of  erosion,  and,  be- 
cause of  it,  the  soil  is  ])hifed  in  capability  unit  lIe-1. 
There  are  .'51 1  acres. 

Westmoreland  channery  silt  loam,  10  to  20  percent 
slopes,  moderately  eroded  (WmC2). — Theie  is  a  strong 
threat  of  erosion  on  this  soil,  and  it  is  placed  in  capa- 
bility unit  lTTe-1.  There  are  203  acres. 

Westmoreland  channery  silt  loam,  3  to  20  percent 
slopes,  severely  eroded  (WmC3). —  Ki'osion  has  damaged 
this  soil  so  that  it  must  be  very  carefully  managed  and 
])i-otected  if  cidtivation  is  to  continue  safely.  A  good 
use  woidd  l)e  for  sodded  orcliards.  The  27>^  acres  are  in 
capability  iniit  IVe-1. 

Westmoreland  channery  silt  loam,  20  to  30  percent 
slopes,  moderately  eroded  (WmD2). — The  sloi)e  of  this  soil 
is  strong  enougli  to  cause  severe  risk  of  erosion  if  it  is 
cultivated.  Tlie  82  acres  are  in  capability  unit  IVe-1. 

Westmoreland  channery  silt  loam,  20  to  30  percent 
slopes,  severely  eroded  (WmD3). — Erosion  has  been  severe 
enough  on  this  soil  to  make  further  cultivation  im- 
practicable. A  better  use  woidd  be  permanent  .sod  for 
pasture,  or  occasional  hay  crops.  There  are  100  acres,  in 
capability  imit  VIe-1. 

Estimated  Yields 

The  soils  of  Washington  County  vary  considerably  in 
])roduct ivity.  Some  of  them  consistently  ])roduce  high 
yields  of  the  cidtivated  crops,  and  others  are  better  suited 
to  less  intensive  uses. 

Table  5  shows,  for  the  soils  suitable  for  crops  or  pasture, 
tlie  average  estimated  yields  of  specified  crops  under 
present  management  and  imder  the  improved  manage- 
ment that  is  suggested  for  the  different  capability  units  in 
the  next  section  of  tliis  report.  These  yields  are  averages 
for  a  normal  5-year  period.  In  any  given  crop  year,  the 
yield  of  any  crop  nniy  be  more  or  less  than  the  figure 
shown. 

These  estimates  are  based  on  information  obtained  from 
agricultural  workers  in  the  county  and  at  the  Maryland 
Agricultural  Experiment  Station,  and  from  observations 
by  farmers  in  the  county. 

The  yields  under  improved  management  are  not  pre- 
sumed "to  be  the  maximum  obtainable.  Yields  from  the 
same  soils  vai-y,  depending  on  variations  in  management, 
weather,  crop  varieties,  and  diseases  and  insect  pests. 

Improved  management  includes  some  or  many  of  these 
management  practices : 

1.  Necessary  conservation  measures,  which  may  in- 
clude contour  tillage,  stripcropping,  terracing,  or  contour 
furrowing;  drainage;  water  control  on  both  drained  and 
undi-ained  soils,  especially  disposal  of  excess  water;  and 
irrigation  where  needed  and  feasible. 

2.  Selection  of  varieties  of  crops  suitable  to  the  soil 
and  the  county. 


WASHINCTON    COUNTY,  MAHYLAND 


53 


8.  Kot  at  ions  of  MdcMiualc  l(Mi<itli,  <;('iHM-all y  iiicliKliii*^ 
the  l'ollo\viii«i- :  A  tilled  cioi)  to  coiUrol  weeds;  a  deep- 
rooted  crop  to  improve  peniieahilitv ;  one  or  more  crops 
of  le<;nmes  to  maintain  or  ini[)rove  fertility;  and  a  close- 
f;r()\vin<>:  crop  or  green-manure  crop  to  improve  structure 
and  tilth,  supply  or<ianic  matter,  and  control  erosion. 

4.  Return  of  manure  and  ci'op  residues  to  the  soil  to 
supply  nitroj^en  and  other  nutiMents  and  to  improve  the 
physical  characteristics  of  the  soil. 


5.  Api)licat ion  of  fertilizer-  and  lime  as  indieated  hy 
soil  tests.  The  county  a<feiil"s  oflice  can  he  consulted 
ahout  soil-test in<^  services. 

(■).  Suitahle  methods  of  plowing,  preparing  the  seed- 
bed, and  cultivating. 

7.  Planting,  cultivating,  and  harvesting  at  the  ftroper 
time  aiul  in  the  proper  way. 

s.    Control  of  weeds,  diseases,  and  in.sects. 


54 


SOIL  SURVEY   SERIES    1959,  NO.  17 


Taisle  5. — Estimated  average  acre  yields  of  specified  crops  under 
[Iti  foluiniis  A  lire  yields  under  present  management  ;  in  columns  B  are  yields  under  improved  management.  Where 


Soil 


Corn 


Wheat 


Barley 


Asliton  fin(>  sandy  loam,  0  to  5  percent  slopes  

Atkins  silt  loam  

Ben(>vola  clay  loam,  0  to  3  percent  slopes  

Benevola  clay  loam,  '.i  to  8  percent  slopes,  moderately  eroded  

Benevola  clay  loam,  8  to  15  percent  slopes,  moderately  eroded  

Benevola  clay  loam,  8  to  15  percent  sloj^es,  severely  eroded  

Berks  ch;iniiery  loam,  I'idges,  0  to  10  j^ercent  slopes,  moderately  eroded  

l^erks  channery  loam,  ridges,  10  to  20  percent  slopes,  moderately  eroded  

Berks  channery  loam,  ridges,  10  to  20  percent  slojjes,  severely  eroded  

Berks  channery  loam,  ridges,  20  to  30  percent  slopes,  moderately  eroded  

Bei  ks  shaly  silt  loam,  0  to  8  percent  slopes    

Berks  shaly  silt  loam,  3  to  8  percent  slopes,  moderately  eroded  

Berks  shalv  silt  loam,  8  to  15  percent  slopes,  moderately  eroded  

Berks  shaly  silt  loam,  15  to  25  jx'rcent  slopes,  moderately  eroded  

I^erks  silt  loam,  ridges,  0  to  10  percent  slopes,  moderately  eroded  

lierks  silt  loam,  ridges,  10  to  20  percent  slojies,  moderately  eroded  

Berks  silt  loam,  ridges,  10  to  20  percent  slopes,  severely  eroded  

Berks  silt  loam,  ridges,  20  to  30  percent  slopes,  moderately  eroded  

Braddock  and  Thurmont  gravelly  loams,  3  to  8  percent  slopes,  moderately  eroded  

Braddock  and  Thurmont  gravelly  loams,  8  to  15  percent  slopes,  moderately  eroded  

Braddock  and  Thurmont  gravelly  loams,  15  to  25  percent  slopes  

Brinkerton  silt  loam,  0  to  8  percent  slopes   _   

Buchanan  gravelly  loam,  0  to  3  percent  slopes  

Buchanan  gravelly  loam,  3  to  8  percent  slopes,  moderately  eroded  

Buchanan  gravelly  loam,  8  to  15  percent  slopes,  moderately  eroded  

Buchanan  gravelly  loam,  15  to  25  percent  slopes,  moderately  eroded  

Calvin  channery  fine  sandy  loam,  3  to  10  percent  slopes,  moderately  eroded  

Calvin  channery  loam,  3  to  10  percent  slopes,  moderately  eroded^,  

C'alvin  channery  loam,  10  to  20  percent  slopes,  moderately  eroded  

Calvin  channery  loam,  20  to  30  percent  slopes  

Calvin  channery  loam,  20  to  30  percent  slopes,  moderately  eroded  l.  

Calvin  channery  loam,  30  to  45  percent  slopes  

Calvin  shaly  loam,  0  to  10  percent  slopes,  moderately  eroded  

Calvin  shaly  loam,  10  to  20  percent  slopes,  moderately  eroded  ^_ 

Calvin  shaly  loam,  10  to  20  percent  slopes,  severely  eroded  

Calvin  shaly  loam,  20  to  30  percent  slopes  

Calvin  shaly  loam,  30  to  45  percent  slopes  

Calvin-Berks  chaimery  loams,  0  to  10  percent  slopes,  moderately  eroded  

Calvin-Berks  channery  loams,  10  to  20  percent  slopes,  moderately  eroded  

Calvin-Berks  chaimery  loams,  3  to  20  percent  slopes,  severely  eroded  

Calvin-Berks  channery  loams,  20  to  30  percent  slopes,  moderately  eroded  

Calvin-Mont evallo  shaly  loams,  0  to  10  percent  slopes,  moderately  eroded  

Calvin-Mont evallo  shaly  loams,  10  to  20  percent  slopes,  moderately  eroded  

Calvin-Montevallo  shaly  loams,  20  to  30  percent  slopes,  moderately  eroded  

Chandler  silt  loam  and  channery  silt  loam,  0  to  10  percent  slopes  

Chandler  silt  loam  and  channery  silt  loam,  3  to  10  percent  slopes,  moderately  eroded.  _ 
Chandler  silt  loam  and  channery  silt  loam,  10  to  20  percent  slopes,  moderately  eroded- 
Chandler  silt  loam  and  channery  silt  loam,  20  to  30  percent  slopes  

Chewacla  gravelly  sandy  loam  

Chewacla  silt  loam  

Chewacla  stony  silt  loam  

Congaree  silt  loam  and  gravelh-  loam  

Corydon  clay  loam,  0  to  3  percent  slopes  

Corydon  clay  loam,  3  to  8  percent  slopes,  moderately  eroded  

Corydon  clay  loam,  8  to  15  percent  slopes,  moderately  eroded  

Corydon  extremely  rocky  clay  loam,  0  to  15  percent  slopes  

Corydon  very  rocky  clay  loam,  3  to  45  percent  slopes,  moderately  eroded  

Duffield  silt  loam,  0  to  3  percent  slopes  

Duffield  silt  loam,  3  to  8  percent  slopes,  moderately  eroded  

Duffield  silt  loam,  8  to  15  percent  slopes,  moderately  eroded  

Duffield  silt  loam,  8  to  25  percent  slopes,  severely  eroded  

Duffield  silt  loam,  15  to  25  percent  slopes,  moderately  eroded  

Duffield  very  rocky  silt  loam,  3  to  15  percent  slopes  

Duffield  very  rocky  silt  loam,  8  to  45  percent  slopes,  moderately  eroded  

Dunmore  cherty  silt  loam,  3  to  8  percent  slopes,  moderately  eroded  

Dunmore  cherty  silt  loam,  8  to  15  percent  slopes,  moderately  eroded  

See  footnotes  at  end  at  table. 


Bu. 
65 
35 
65 
60 
50 
30 
30 
25 
15 
15 
35 
30 
25 
18 
30 
25 
15 
18 
35 
30 
20 
40 
40 
35 
30 
20 
30 
30 
25 
20 
18 


Bti. 

90 
60 
90 
85 
70 
45 
45 
35 
25 
25 
60 
50 
40 
28 
50 
40 
25 
30 
60 
55 
35 
60 
60 
55 
45 
30 
50 
50 
40 
35 
25 


Bu. 

20 


Bu. 
40 


40 
35 
30 
20 
15 
12 
10 
10 
18 
15 
15 
12 
15 
15 
10 
12 
20 
15 
12 


60 
55 
40 
30 
25 
20 
15 
15 
25 
22 
22 
17 
22 
22 
15 
20 
28 
25 
18 


20 
18 
15 
12 
20 
20 
15 
12 
10 


30 
25 
20 
18 
30 
30 
25 
20 
15 


25 
20 
15 
15 


40 
35 
22 
22 


15 
12 
10 
10 


20 
20 
15 
15 


30 
25 
18 
18 
25 
20 
15 
30 
25 
20 


35 
45 


60 
55 
50 
40 


70 
65 
55 
30 
40 


55 
45 


50 
40 
25 
25 
40 
35 
22 
45 
40 
30 


20 
15 
10 
10 
15 
12 
10 
17 
15 
12 


30 
25 
15 
15 
20 
20 
15 
25 
22 
20 


65 
75 


90 
95 
85 
75 


30 
25 
22 


50 
45 
35 


100 

95 
85 
55 
65 


40 
35 
30 
20 
25 


60 
50 
45 
30 
35 


85 
75 


30 
25 


45 
35 


Bu. 
30 


50 
45 
40 
25 
25 
20 
15 
15 
30 
25 
20 
17 
25 
20 
15 
18 
30 
25 
18 


30 
28 
25 
20 
25 
25 
20 
15 
15 


20 
20 
15 
15 


25 
20 
15 
15 
20 
20 
15 
25 
22 
20 


40 
35 
32 


55 
45 
40 
25 
30 


40 
30 


Bu. 

50 


75 
65 
60 
35 
40 
30 
20 
20 
40 
35 
30 
25 
35 
30 
20 
25 
45 
40 
30 


40 
40 
35 
28 
35 
35 
30 
25 
20 


32 
30 
20 
20 


35 
30 
20 
20 
32 
30 
20 
35 
32 
30 


60 
55 
50 


80 
70 
60 
40 
45 


60 
50 


WASmN(iT().\    roUNTY,   MAHYI>A.\I)  55 

tiro  Ii  n  Is  of  iiKt iut(j<  iiK  lit  on  llii  soils  siiitoh/i  for  rro])s  or  jxisture 


yields  are  liol  f: i  \  cii ,  ril  licr  1  lie  snil  is  ikiI  >iul  ;i I  ilc  f( n  I     I  ci  np  ( ii  I  Iktc  is  no  infc ii  iikiI  ic )ii  on  u  liich  1  o  .-in  est  itnat  <•] 


Oiits 

Alfalfa 

('lo\  (T  and 

Apples 

Peaches 

Prunes  and 

(-'h('rri<!H  ' 

Pasture  (cow- 

mixed  hay 

phims 

acre-days)  ' 

A 

B 

A 

B 

A 

B 

A 

B 

A 

B 

A 

B 

A 

B 

A 

B 

Bu. 

Bu. 

Tons 

Tons 

Tons 

Tons 

Bu. 

Bu. 

Bu. 

Bu. 

Bu. 

Bu. 

Lb. 

35 

60 

2.  8 

5.  2 

1.  7 

3.  0 

100 

175 

1.  2 

2.  0 

70 

100 

50 

70 

3.  6 

5.  6 

2.  5 

3.  3 

190 

40 

60 

3.  2 

4.  6 

2.  4 

3.  2 

1  10 

175 

35 

55 

3.  0 

4.  2 

2.  0 

3.  0 

l-'O 

150 

25 

35 

2.  0 
1.  8 

2.  6 

1.  2 

1.  8 

95 

120 

25 

40 

2.  4 

1.  2 

1.  6 

120 

180 

90 

135 

105 

150 

60 

90 

60 

95 

15 

25 

1.  4 

2.  2 

1.  0 

1.  4 

100 

150 

75 

115 

90 

135 

50 

75 

50 

85 

15 

20 

1.  2 

1.  8 

.  6 

1.  0 

70 

100 

55 

75 

65 

90 

35 

50 

40 

60 

15 

20 

1.  2 

1.  8 

.  6 

1.  0 

70 

100 

55 

75 

65 

90 

35 

50 

40 

60 

25 

40 

2.  0 

2.  6 

1.  2 

1.  7 

130 

190 

95 

140 

110 

160 

65 

95 

70 

100 

25 

35 

1.  8 

2.  6 

1.  1 

1.  7 

120 

180 

90 

135 

105 

150 

()0 

90 

65 

95 

20 

30 

1.  8 

2.  6 

1.  1 

1.  5 

110 

170 

85 

125 

95 

140 

55 

85 

60 

90 

17 

25 

1.  4 

2.  0 

.  8 

1.  3 

90 

140 

70 

100 

80 

115 

45 

70 

45 

75 

25 

35 

1.  8 

2.  6 

1.  1 

1.  7 

120 

180 

90 

135 

105 

150 

60 

90 

65 

95 

20 

30 

1.  6 

2.  4 

1.  0 

1.  4 

100 

150 

75 

110 

80 

115 

50 

80 

55 

85 

15 

20 

1.  2 

1.  8 

.  6 

1.  0 

70 

100 

55 

75 

65 

90 

35 

50 

40 

60 

18 

25 

1.  4 

2.  0 

.  7 

1.  1 

80 

110 

60 

85 

70 

95 

40 

55 

45 

75 

30 

45 

2.  2 

3.  6 

1.  4 

2.  3 

150 

200 

110 

150 

130 

175 

75 

100 

80 

110 

25 

40 

2.  0 

2.  8 

1.  2 

2.  0 

120 

170 

90 

125 

105 

145 

60 

85 

60 

90 

15 

25 

1.  4 

2.  4 

.  8 

1.  4 

90 

140 

65 

100 

75 

115 

45 

70 

40 

70 

1.  2 

2.  0 

70 

100 

1.  4 

2.  2 

85 

110 

1.  3 

2.  0 

75 

105 

1.  1 

1.  6 

65 

90 

.  9 

1.  3 

55 

80 

25 

35 

2.  0 

2.  8 

1.  3 

2.  0 

150 

200 

110 

150 

130 

175 

75 

100 

70 

100 

25 

35 

2.  0 

2.  8 

1.  3 

2.  0 

125 

175 

95 

135 

110 

155 

65 

90 

60 

90 

15 

25 

1.  5 

2.  3 

1.  0 

1.  5 

100 

150 

75 

115 

90 

135 

50 

75 

50 

80 

15 

22 

1.  2 

2.  0 

.  7 

1.  1 

80 

120 

60 

90 

70 

105 

40 

60 

45 

70 

15 

20 

1.0 

1.  8 

.  6 

1.  0 

70 

100 

55 

80 

65 

90 

35 

50 

40 

60 

35 

60 

18 

30 

1.  6 

2.  4 

1.  1 

1.  5 

110 

160 

80 

120 

95 

140 

55 

80 

60 

85 

15 

25 

1.  4 

2.  2 

1.  0 

1.  4 

100 

150 

75 

115 

90 

135 

50 

75 

50 

80 

15 

20 

1.  2 

1.  8 

.  6 

1.  0 

70 

100 

55 

80 

65 

90 

35 

50 

40 

60 

15 

20 

1.  2 

1.  8 

.  6 

1.  0 

70 

100 

55 

80 

65 

90 

35 

50 

40 

60 

35 

60 

25 

35 

2.  0 

2.  8 

1.  3 

2.  0 

125 

175 

95 

135 

110 

155 

65 

90 

60 

90 

15 

25 

1.  5 

2.  3 

1.  0 

1.  5 

100 

150 

75 

115 

90 

135 

50 

75 

50 

80 

15 

20 

1.  0 

1.  8 

.  6 

1.  0 

70 

100 

55 

80 

65 

90 

35 

50 

40 

60 

15 

20 

1.  0 

1.  8 

.  6 

1.  0 

70 

100 

55 

80 

65 

90 

35 

50 

40 

60 

18 

30 

1.  6 

2.  4 

1.  1 

1.  5 

110 

160 

80 

120 

95 

140 

55 

80 

60 

85 

15 

25 

1.  4 

2.  2 

1.  0 

1.  4 

100 

150 

75 

115 

90 

135 

50 

75 

50 

80 

15 

20 

1.  2 

1.  8 

.  6 

1.  0 

70 

100 

55 

80 

65 

90 

35 

50 

40 

60 

25 

35 

2.  0 

2.  6 

1.  1 

1.  7 

120 

170 

90 

125 

105 

150 

60 

85 

60 

90 

20 

30 

1.  6 

2.  4 

1.  0 

1.  6 

110 

160 

85 

120 

95 

140 

55 

80 

55 

80 

18 

25 

1.  4 

2.  2 

.  9 

1.  5 

100 

150 

75 

115 

90 

135 

50 

75 

45 

70 

40 

60 

75 

110 

100 

150 

85 

130 

2.  0 

2.  6 

150 

IOC 

loo 

40 

55 

2.  8 

4.  4 

2.  0 

2.  7 

120 

150 

35 

50 

2.  6 

3.  8 

1.  9 

2.  6 

110 

140 

30 

45 

2.  4 

3.  4 

1.  6 

2.  4 

95 

120 

50 

85 

75 

110 

60 

80 

3.  6 

5.  6 

2.  6 

3.  4 

150 

190 

45 

70 

3.  2 

4.  6 

2.  3 

3.  2 

140 

175 

40 

60 

3.  0 

4.  2 

2.  2 

3.  0 

120 

150 

25 

40 

2.  2 

3.  0 

1.  5 

2.  3 

80 

120 

30 

45 

2.  6 

3.  6 

1.  7 

2.  5 

100 

135 

100 

140 

85 

125 

40 

60 

3.  0 

4.  4 

2.  2 

3.  0 

180 

260 

135 

195 

155 

225 

90 

130 

110 

150 

30 

50 

2.  4 

3.  6 

1.  8 

2.  4 

140 

210 

105 

155 

125 

180 

70 

105 

90 

120 

56 


SOIL  SURVEY   SERIES    1959,  NO.  17 


Taulk  5. — Estimated  avera(je  acre  yields  of  .specified  crops  under  ivx) 
[In  columns  A  are  yields  under  present  numageinent;  in  columns  B  are  yields  under  improved  management.  Where 


Soil 


Corn 


Wheat 


linrl.-y 


Dunniny;  and  Mcl\'iii  silty  clay  loams  

Edgeinont  and  ]>ai(ilK  channcry  loams,  0  to  12  percent  slopes  

Edgcmont  and  Laidig  channcry  loams,  5  to  20  percent  slopes,  moderately  eroded  

Edgemont  aiifl  Laidig  channcry  loams,  20  to  3.5  jjerccnt  slopes,  moderately  eroded  

Edgcmont  and  Laidig  channcry  loams,  ;j5  to  (iO  percent  slojx's,  moderately  eroded  

Edgcmont  and  Laidig  very  stony  loams,  0  to  5  percent  slopes  

Eflgcinont  and  Laidig  very  stony  loams,  ■'j  to  H.'j  j:crccnt  slojjes  

EUibcr  ch(>rty  loam,  5  to  12  percent  slopes,  modcratt'ly  eroded   

Elliber  cherty  loam,  12  to  25  percent  slopes,  moderately  eroded  

Elliber  cherty  loam,  25  to  45  [XTCent  sloi)es,  moderately  eroded  

Etowah  gravelly  loam,  0  to  8  percent  slopes  

Etowah  gravelly  loam,  H  to  8  percent  slopes,  moderately  eroded  

Etowah  gravelly  loam,  8  to  15  percent  slopes,  moderately  eroded  

Etowah  gravelly  loam,  15  to  25  percent  slopes,  moderately  eroded  

P^towah  silt  loam,  0  to  ;5  percent  slopes  

Etowah  silt  loam,  ;i  to  8  ])ercent  slojx's,  moderately  eroded  

P^.towah  silt  loam,  8  to  15  percent  slopes,  moderately  eroded  

Fau(|uicr  chaiinery  loam.  0  to  5  percent  slopes  

Fauciiiier  chann(>ry  loam,  5  to  10  percent  slojies,  moderately  eroded  

Fauiiuicr  channcry  loam,  10  to  20  percent  slopes,  moderately  eroded  

Fauiiuicr  channcry  loam,  20  to  .^5  percent  slopes,  moderately  eroded  

P'auciuicr  silt  loam,  0  to  :?  i)crccnt  slopes  

Fau(|uier  silt  loam,  3  to  II)  percent  slopes,  moderately  eroded  

Fau(|uicr  silt  loam,  10  to  20  percent  slojx's,  moderately  eroded  

Fauiiuicr  silt  loam,  shallow,  W  to  20  jx-rccnt  slopes,  moderately  eroded  

Fau(iuicr  very  stony  loam,  5  to  35  percent  slojx's  

Frankstown  very  rocky  silt  loam,  3  to  15  percent  slopes,  mod(>rately  eroded  

Frankstown  very  rocky  silt  loam,  15  to  45  pcrc<>nt  slopes,  moderately  eroded  

Frankstown  and  Duffield  channery  silt  loams,  0  to  3  percent  slopes  

Frankstown  and  Duffield  channery  silt  loams,  3  to  8  percent  slopes,  moderately  eroded  

Frankstown  and  Duffield  channery  silt  loams.  0  to  8  percent  slopes,  severely  eroded  

Frankstown  and  Duffield  channery  silt  loams,  8  to  15  percent  slopes,  moderately  eroded.. 

Frankstown  and  Duffield  chaiuicry  silt  loams,  8  to  15  percent  slopes,  severely  eroded  

Frankstown  and  Duffield  channery  silt  loams,  15  to  25  percent  slopes,  moderately  eroded, 

Frankstown  and  Duffield  channery  silt  loams,  15  to  25  percent  slopes,  severely  eroded  

P'rankstown  and  Duffield  channery  siit  loams,  25  to  45  percent  slopes,  moderately  eroded. 

Frederick  cherty  silt  loam,  0  to  8  percent  slopes,  moderately  eroded  

Frederick  cherty  silt  loam,  8  to  15  percent  slopes,  moderately  eroded  -  

Frederick  cherty  silt  loam,  8  to  15  percent  slopes,  severely  eroded  

Frederick  cherty  silt  loam,  15  to  25  percent  slopes,  moderately  eroded  

Frederick  cherty  silt  loam,  15  to  25  percent  slopes,  severely  eroded  

Frederick  cherty  silt  loam,  25  to  45  percent  slopes,  moderately  eroded  

Hagerstown  clay  loam,  0  to  3  percent  slopes  

Hagerstown  clay  loam,  0  to  8  percent  slopes,  moderately  eroded  

Hagerstown  clay  loam,  3  to  8  percent  slopes,  severely  eroded  

Hagerstown  clay  loam,  8  to  15  percent  slopes,  moderately  eroded  

Hagerstown  clay  loam,  8  to  15  percent  slopes,  severely  eroded  

Hagerstown  clay  loam,  15  to  25  percent  slopes,  moderately  eroded  

Hagerstown  clay  loam,  15  to  25  percent  slopes,  severely  eroded  

Hagerstown  silt  loam,  0  to  3  percent  slopes  

Hagerstown  silt  loam,  0  to  8  percent  slopes,  moderately  eroded  

Hagerstown  silt  loam,  8  to  15  percent  slopes,  moderately  eroded  

Hagerstown  silt  loam,  15  to  25  percent  slopes,  moderately  eroded  

Hagerstown  silty  clay  loam,  0  to  3  percent  slopes  

Hagerstown  silty  clay  loam,  0  to  8  percent  slopes,  moderately  eroded  

Hagerstown  silty  clay  loam,  8  to  15  percent  slopes,  moderately  eroded  

Hagerstown  silty  clay  loam,  15  to  25  percent  slopes,  moderately  eroded  

Hagerstown  very  rocky  silt  loam,  3  to  15  percent  slopes,  moderately  eroded  

Hagerstown  very  rocky  silt  loam,  15  to  45  percent  slopes,  moderately  eroded  

Hagerstown  very  rocky  silty  clay  loam,  3  to  15  percent  slopes,  moderately  eroded  

Hagerstown  very  rocky  silty  clay  loam,  8  to  15  percent  slopes,  severely  eroded  

Hagerstown  very  rocky  silty  clay  loam,  15  to  45  percent  slopes,  moderately  eroded  

Hagerstown,  Corydon,  and  Duffield  very  rocky  silt  loams,  0  to  3  percent  slopes  

Hagerstown  and  Duffield  silt  loams,  25  to  45  percent  slopes,  moderately  eroded  

Hazel  channery  silt  loam,  0  to  10  percent  slopes,  moderately  eroded  

Hazel  channery  silt  loam,  10  to  20  percent  slopes,  moderately  eroded  


Bu. 
45 
35 
30 
25 


Bu. 

80 
50 
45 
35 


Bu. 


Bu. 


17 

15 
12 


25 
22 
18 


40 
35 
25 
65 
55 
45 
35 
65 
55 
45 
60 
50 
40 
30 
60 
50 
40 
22 


65 
55 
40 
90 
80 
70 
60 
90 
80 
70 
80 
70 
60 
50 
80 
70 
60 
35 


25 
20 
12 
40 
35 
25 
20 
40 
35 
25 
30 
25 
20 
17 
30 
25 
20 
15 


35 
30 
18 
55 
50 
40 
35 
55 
50 
40 
40 
35 
30 
25 
40 
35 
30 
20 


65 
60 
45 
50 
35 
35 


95 
90 
70 
75 
55 
60 


40 
35 
25 
30 
18 
20 


50 
45 
35 
40 
25 
30 


50 
40 
30 
35 


75 
65 
50 
55 


30 
25 
18 
20 


45 
35 
25 
30 


65 
60 
45 
55 
35 
40 


95 
90 
70 
80 
55 
65 


40 
35 
25 
25 
20 
20 


60 
55 
35 
40 
25 
30 


70 
65 
55 
40 
70 
65 
55 
40 


100 

95 
85 
65 
100 
95 
85 
65 


40 
35 
25 
20 
40 
35 
25 
20 


60 
55 
40 
30 
60 
55 
40 
30 


20 
15 


30 
25 


15 
10 


20 
15 


Bu. 


30 
25 
20 


35 
30 
20 
50 
40 
35 
30 
50 
40 
35 
40 
35 
30 
25 
40 
35 
30 
20 


55 
45 
35 
40 
25 
30 


40 
35 
25 
30 


50 
45 
35 
40 
25 
30 


50 
45 
40 
30 
50 
45 
40 
30 


17 

15 


Bu. 


40 
35 
30 


50 
40 
30 
70 
60 
55 
45 
70 
60 
55 
60 
50 
45 
35 
60 
50 
45 
30 


75 
65 
50 
60 
40 
45 


60 
50 
35 
40 


75 
65 
50 
60 
40 
45 


75 
65 
60 
45 
75 
65 
60 
45 


23 
20 


See  footnotes  at  end  of  table. 


WASI  TON"    COUNTY,  MAHVLAM) 


57 


levels  of  nil  lit  oil  tli(  soils  sii'itdhh  for  crops  or  pasture-  ( 'oiil iiiiicd 

yields  iire  not  given,  eiLlior  the  soil  is  not  suitable  for  that  crop  or  there  is  no  information  on  wliicli  to  base  an  cHtimate] 


Ouls 

Alf.i 

ll'a 

( 'lovor  and 

A  nplos 

Peaches 

I'ruiK^s  and 

Cherries  ' 

mixed  hay 

plums 

A 

B 

A 

B 

A 

B 

A 

B 

A 

B 

A 

B 

A 

B 

Bu. 

Bit. 

Tons 

Tons 

Tons 
1.  5 

Tons 
2.  8 

Bu. 

Bu. 

Bu. 

Bu. 

Bu. 

Bu. 

Lb. 

I.b. 

oU 

  - - 

40 

^  9 

1  Q 
1.  0 

u 

1  OA 

A  C 

yo 

160 

I  iU 

IKK 

loo 

£1 K 

yu 

25 

35 

9  S 

1  *> 

120 

170 

90 

125 

lUo 

1  KA 

loU 

60 

85 

30 

1  A 

9  4. 

.  9 

1.  4 

yu 

1  .1 A 

141) 

*7A 

1  A  C 

1U5 

85 

130 

45 

7U 

o  c 

6b 

50 

2.  4 

3.  6 

1.  9 

2.  5 

1  CA 

0  4  A 

z4U 

1  1  A 
1  10 

1  OA 

130 

210 

 --- 

/5 

t  OA 

IzU 

40 

1.  o 

0.  u 

J.  4 

0  9 

2UU 

A  e 

ys 

1  CA 
15(J 

115 

1  T  K 
1  /  0 

65 

1  AA 
lUU 

20 

30 

1.  U 

1.  0 

100 

150 

75 

110 

00 

1  QA 

loU 

50 

75 

50 

70 

Q  9 

2. 3 

3.  0 

4U 

60 

3.  0 

4.  0 

2. 0 

2.  9 

1  OA 

loU 

OCA 

zoU 

135 

1  A  C 

195 

160 

230 

AA 
90 

1  OA 

loU 

35 

55 

9  8 

0.  0 

1.  8 

2.  6 

140 

240 

105 

180 

120 

210 

70 

120 

30 

45 

9  9 

^  9 

1.  4 

2.  1 

110 

190 

80 

140 

95 

165 

55 

95 

50 

70 

3.  2 

4.  6 

2.  3 

3.  0 

40 

60 

3.  0 

4.  0 

2.  0 

2.  9 

180 

260 

135 

195 

160 

230 

90 

130 

35 

55 

2.  8 

3.  8 

1.  8 

2.  6 

140 

240 

105 

180 

120 

210 

70 

120 

40 

60 

3.  6 

4.  6 

2.  2 

3.  0 

35 

55 

3.  2 

4.  0 

1.  9 

2.  7 

180 

260 

135 

195 

160 

230 

90 

130 

30 

50 

3.  0 

4.  0 

1.  8 

2.  4 

140 

240 

105 

180 

125 

200 

70 

120 

25 

35 

2.  6 

3.  6 

1.  6 

2.  1 

110 

190 

80 

145 

95 

165 

55 

95 

40 

60 

3.  6 

4.  6 

2.  2 

3.  0 

35 

50 

3.  2 

4.  0 

1  A 

1.  y 

0  T 
^.  / 

180 

260 

135 

195 

1  AA 

loU 

OQ  A 

90 

130 

30 

50 

3.  0 

4.  0 

1  Q 
1.  0 

Z.  4 

140 

240 

105 

180 

1  OK 

Izo 

OAA 
ZUU 

70 

120 

OA 

30 

1  '3 
1.  0 

1  0 

1  AA 
lUU 

1  7A 

'7  c 

to 

1  OA 

IzU 

00 

14U 

C  A 

60 

0  c 

50 

70 

^  A 

O.  4: 

Pi  J. 

2.  4 

3.  2 

40 

60 

3.  2 

4.  6 

2.  3 

3.  0 

30 

50 

2.  6 

3.  8 

1.  8 

2.  6 
2.  8 

35 

55 

3.  0 

4.  2 

2.  0 

25 

40 

2.  0 

2.  8 

1.  4 

2.  2 

30 

45 

2.  4 

3.  2 

1.  6 

2.  4 

40 

60 

3.  0 

4.  4 

2.  2 

3.  0 

180 

260 

135 

195 

155 

230 

90 

130 

35 

50 

2.  4 

3.  6 

1.  9 

2.  5 

150 

240 

105 

180 

125 

210 

75 

120 

25 

35 

1.  4 

2.  4 

1.  2 

2.  0 

110 

180 

80 

120 

95 

150 

55 

90 

30 

40 

1.  6 

3.  0 

1.  4 

2.  2 

130 

210 

90 

150 

110 

180 

65 

100 

  -  - - 

50 

70 

3.  6 

5.  6 

2.  5 

3.  3 

40 

60 

3.  2 

4.  6 

2.  4 

3.  2 

35 

50 

2.  6 

3.  8 

1.  8 

2.  6 

35 

55 

O  A 

3.  0 

4.  2 

2.  0 

3.  0 

25 

40 

I.  u 

2.  8 

1.  4 

2.  2 

30 

45 

2.  4 

3.  2 

1.  7 

2.  4 

50 

75 

3.  6 

5.  6 

2.  5 

3.  3 

40 

60 

3.  2 

4.  6 

2.  4 

3.  2 

35 

55 

3.  0 

4.  2 

0  n 
u 

0.  u 

30 

45 

2.  4 

3.  2 

1. 7 

2.  4 

ou 

/  0 

3.  6 

5.  6 

2. 5 

3.  3 

40 

60 

3.  2 

4.  6 

2. 4 

3.  2 

35 

55 

3.  0 

4  2 

2. 0 

3.  0 

30 

45 

2!  4 

3!  2 

1. 7 

2.  4 

17 

23 

.  7 

1.  2 

75 

110 

55 

85 

65 

95 

40 

60 

15 

20 

.  6 

1.  0 

70 

100 

50 

75 

60 

85 

35 

50 

Pasture  (cow- 
acre-days)  ' 


90 
70 
60 
40 
30 
60 
30 
85 
65 
40 
150 
135 
120 
95 
150 
135 
120 
135 
125 
115 
75 
135 
125 
115 
60 
55 
100 
75 
150 
140 
110 

r.'o 

90 
100 
65 
70 
110 
85 
55 
65 
50 
55 
150 
140 
110 
120 
90 
100 
70 
150 
140 
120 
100 
150 
140 
120 
100 
100 
85 
100 
75 
85 
110 
90 
50 
40 


150 
100 
90 
70 
50 
90 
50 
120 
95 
70 
190 
170 
150 
120 
190 
170 
150 
170 
160 
145 
100 
170 
160 
145 
85 
80 
140 
110 
185 
170 
140 
150 
120 
135 
95 
105 
150 
120 
90 
100 
70 
80 
190 
175 
140 
150 
120 
130 
100 
190 
175 
150 
130 
190 
175 
150 
130 
140 
125 
140 
110 
125 
160 
125 
75 
60 


58  SOIL   SUIU'EY  SERIES    1959,  NO.  17 

Table  5. — Estimated  average  acre  yields  of  specified  crops  under  two 


[In  coliiiinis  A  are  yields  iiiuler  present  management;  in  columns  B  are  yields  under  improved  management.  Where 


Corn 

Wheat 

Barley 

Soil 

A 

B 

A 

B 

A 

B 

Bu. 

Bu. 

Bu. 

Bu. 

Bu. 

Bu. 

Hazel  channerv  silt  loam,  10  to  20  percent  slopes,  severely  eroded       - 

« 

D 

1  0 
lU 

lU 

1  K 
1 0 

Ha/cl  channerv  silt  loam,  20  to  'M)  percent  slopes,  moderatelv  eroded.-  .  _  .  .    . 

10 

15 

8 

12 

12 

17 

Higlitichi  gra\'cllv  loam,  0  to  5  percent  slopes     ..     .   _  .                            -  . 

ou 

7K 
1 0 

zo 

oO 

40 
4U 

K  K 
00 

HiRhficld  gravellv  loam,  5  to  10  percent  slopes,  moderately  eroded..    

99 

■^9 
oZ 

OO 

A  K 
40 

Highficld  gravcUv  loam,  10  to  20  percent  slopes,  moderatelv  eroded.   

00 

90 

zu 

97 
Z  / 

OO 
oU 

Ai\ 
4U 

Highfield  gravellv  loam,  20  to  :{5  percent  slopes,  moderately  eroded   . 

40 

I D 

99 

zz 

90 
ZU 

on 

OU 

Highfield  verv  stony  loam,  5  to  'M)  percent  slopes.   ..                                     .-  .     

40 

/u 

9^1 
ZO 

oO 

OK 
■JO 

Kn 
OU 

Holston  graAcUv  loam,  0  to  8  percent  slopes,  moderately  eroded    

4U 

00 

9'i 
ZO 

oU 

A  K 
40 

Holston  gravellv  loam,  8  to  15  {)ercent  slopes,  moderately  eroded     

oO 

00 

90 

zu 

98 
Zo 

9'; 
ZO 

0  K 
OO 

Holst(jn  gravellv  loam,  8  to  25  percent  slopes,  se\-erelv  eroded                    ...       .  .   

Holston  gravellv  loam,  15  to  25  percent  slojx's,  moderatelv  eroded  .    -  

oyj 

OU 

1  7 

99 
zz 

99 
ZZ 

■^9 
OZ 

Holston  grav(>llv  loam,  25  to  45  percent  slopes,  moderately  eroded..   .. 

oO 

00 

10 

9"^ 
ZO 

■^0 

OU 

An 

4U 

Holston  gravellv  sandv  loam,  ',i  to  15  percent  slopes,  moderatelv  eroded  

iC\ 

4U 

1  9 
1  z 

90 
ZU 

90 
ZO 

OU 

Holston  gravellv  sandv  loam,  8  to  15  percent  slopes,  severely  eroded              .      ..    . 

18 

30 

10 

15 

15 

20 

Holston  silt  loam,  0  to  ',i  percent  slopes     _.   .      .  

40 

7n 

9^ 
ZO 

OtJ 

oO 

Kn 

OU 

Holston  silt  loan),  3  to  8  percent  slopes,  moderately  eroded  .     

00 

9'^ 
ZO 

oO 

on 

A  K 
40 

Holston  silt  loam,  8  to  15  percent  slopes,  moderately  eroded.    ....  ..  

35 

55 

20 

28 

25 

35 

Huntington  fine  sandv  loam_ .                  _                                  __  __     

DO 

1  no 

*?0 

OU 

KK 
00 

Hutitington  gravellv  ioain  _    _                            ._                  ..                                     ..  ..   

7n 
1  u 

1  TO 

90 

CO 

*tVJ 

40 
4U 

KK 
00 

Huntington  silt  loam              . 

70 

1 10 

30 

40 

40 

55 

Huntington  silt  loam,  local  alluvium    .                                                          ....                ..  . 

1 0 

1  lo 

A  O 

4U 

no 

DU 

KK 
00 

TK 
1  0 

oO 

OU 

1  8 

98 
Zo 

"^O 
OU 

A  K 
40 

Laidig  gravellv  loam,  3  to  8  percent  slopes,  moderatelv  eroded    ..                          ..      _  . 

QO 
OZ 

KK 

00 

10 

ZO 

oc 
Zo 

AO 
4U 

Laidig  gravellv  loam,  8  to  15  percent  slopes,  moderatelv  eroded                      .  ..   

KO 
OU 

1  9 
IZ 

on 

ZU 

O  K 

ZO 

OK 
OO 

Laidig  gravellv  loam,  15  to  25  percent  slopes,  moderatelv  eroded         .  ..     

OK 

Ar\ 

4U 

1  0 
lU 

1  7 
1  / 

90 
ZU 

TO 
oU 

Laidig  verv  stonv  loam,  8  to  25  percent  slopes                                                          ..  .  .   

Landisburg  chert  v  silt  loam,  3  to  8  percent  slopes,  moderately  eroded    ..  ...   

Af\ 

4U 

AK 
DO 

OK 
ZO 

0(i 
OO 

0  K 
oO 

A  K 
40 

Landisburg  chert  V  silt  loam,  8  to  25  percent  slopes,  moderatelv  eroded                   .  .  . 

oO 

00 

OO 

zu 

on 
oU 

on 
ou 

ACl 
4U 

Largent  silt  loam.                                  .   ._  

40 

1 0 

Leadvale  gravelly  silt  loam,  0  to  3  percent  slopes.                    .    .   

40 

70 

20 

30 

30 

40 

Leadvale  gravellv  silt  loam,  3  to  8  percent  slopes,  moderately  eroded.   .      .  ... 

35 

55 

15 

25 

25 

35 

Lindside  silt  loam                                                    ....          ..      .  ..   

oU 

OO 

Lindside  silt  loam,  local  alluvium.  _                           .      ...  ....   

55 

OO 

yo 

on 
ZU 

on 
oU 

on 
oU 

An 

4U 

litz  channerv  loam,  3  to  10  percent  slopes,  moderately  eroded            .     ...  ... 

00 

lo 

OK 

Z5 

Zo 

OK 
oO 

Litz  channerv  loam,  10  to  20  percent  slopes,  moderatelv  eroded.  .  ...   

ZO 

45 

10 

OO 

ZZ 

OO 

zz 

OO 
oZ 

Litz  channerv  loam,  10  to  20  perc(Mit  slopes,  severelv  eroded.    ...  ... 

20 

35 

12 

20 

18 

25 

Litz  shalv  loam,  0  to  10  percent  slopes     .  .  ..     _  . 

30 

50 

18 

25 

25 

35 

Litz  shalv  loam,  3  to  10  percent  slopes,  moderatelv  eroded    ... 

28 

45 

18 

25 

25 

35 

Litz  shalv  loam,  10  to  20  percent  slopes,  moderatelv  eroded               .                    .  ._. 

OK 
ZO 

A  O 

40 

15 

OO 

zz 

99 
ZZ 

Q9 
oZ 

Litz  shalv  loam,  10  to  20  percent  slopes,  severelv  eroded 

OO 

ZO 

on 

1  o 
IZ 

on 
ZU 

1  8 

lo 

9K 
ZO 

Litz  shalv  loam,  20  to  30  percent  slopes,  moderatelv  eroded     _     .        .          .  . 

on 

QO 
OU 

1  o 
IZ 

on 

ZU 

1  a 

lo 

ZO 

Litz-Teas  channerv  silt  loams,  0  to  8  percent  slopes                                   _  .. 

30 

55 

on 
ZU 

on 
oU 

OK 
ZO 

OK 
OO 

Litz-Teas  channerv  silt  loams,  3  to  15  percent  slopes,  moderatelv  eroded          _               .  .. 

25 

45 

15 

oc 
Z5 

OO 

zz 

OK 
oO 

Litz-Teas  channerv  silt  loams,  8  to  15  percent  slopes,  severelv  eroded             .  . 

or* 

zO 

OA 

1  o 
IZ 

on 
ZU 

lo 

98 
Zo 

Litz-Teas  channerv  silt  loams,  15  to  25  percent  slopes,  moderatelv  eroded       .  ... 

20 

35 

12 

20 

18 

30 

Litz-Teas  channerv  silt  loams,  25  to  45  percent  slopes,  moderately  eroded 

Melvin  silt  loam.  .... 

40 

70 

Monongahela  gravellv  loam,  3  to  8  percent  slopes,  moderatelv  eroded             .     .  .   

35 

55 

15 

25 

25 

35 

Monongahela  gravellv  loam,  8  to  15  percent  slopes,  moderatelv  eroded 

30 

45 

15 

25 

20 

30 

Monongahela  silt  loam,  0  to  3  percent  slopes     ....                  .  . 

40 

60 

20 

30 

30 

45 

Monongahela  silt  loain,  3  to  8  percent  slopes,  moderatelv  eroded    .               .  . 

35 

55 

15 

25 

25 

35 

Monongahela  silt  loam,  8  to  15  percent  slopes,  moderatelv  eroded           .  .    .. 

30 

45 

15 

25 

20 

30 

Monongahela  silt  loam,  15  to  25  percent  slopes,  moderatelv  eroded       ..     ...  ... 

25 

40 

12 

20 

15 

25 

Montevallo  shalv  loam,  0  to  10  percent  slopes,  moderatelv  eroded  .  .......... 

25 

40 

12 

20 

20 

30 

Montevallo  shalv  loam,  10  to  20  percent  slopes,  moderatelv  eroded              .             ..  ..  .. 

20 

35 

12 

20 

18 

25 

See  footnotes  at  end  of  table. 


WASHINGTON   COUNTY,  MAHVLAM) 


59 


levels  of  management  on  the  soils  sultabh  for  crops  or  pasture — Conlinucd 

yields  are  not  given,  either  the  soil  is  not  suitable  for  that  crop  or  there  is  no  information  on  which  to  base  an  estimate) 


OiUs 

Alfiilfn 

Cloxcr  Mild 

Apples 

Peiiches 

Pniiios  and 

(Jlicrric'S  ' 

niixt'd  hay 

plums 

A 

B 

A 

B 

A 

i> 

A 

B 

A 

B 

A 

A 

B 

Bit. 

Bu. 

Tons 

Tons 

Tons 

Tons 

nu. 

Uu. 

Bu. 

Bu. 

Bu. 

Bu. 

L'>. 

Ui. 

10 

15 

0.  5 

0.  8 

12 

17 

.  5 

.  9 

60 

80 

45 

60 

50 

70 

30 

40 

35 

55 

3.  2 

4.  0 

1.  9 

2.  7 

180 

260 

135 

195 

160 

230 

90 

130 

30 

45 

3.  0 

3.  8 

1.  8 

2.  6 

140 

240 

105 

180 

125 

210 

70 

120 

30 

40 

2.  6 

3.  4 

1.  5 

2.  3 

120 

170 

90 

125 

105 

150 

GO 

85 

20 

30 

2.  2 

3.  0 

1.  2 

2.  0 

110 

160 

80 

120 

95 

140 

55 

80 

35 

50 

2.  8 

3.  8 

1.  7 

2.  4 

170 

240 

125 

180 

150 

210 

85 

120 

30 

45 

2.  6 

3.  2 

1.  5 

2.  2 

140 

210 

105 

155 

125 

180 

70 

105 

25 

40 

2.  4 

3.  0 

1.  3 

1.  9 

130 

180 

95 

135 

115 

160 

65 

90 

22 

35 

2.  0 

2.  8 

1.  2 

1.  7 

120 

170 

90 

125 

105 

145 

60 

85 

30 

40 

2.  2 

3.  2 

1.  3 

2.  0 

130 

180 

95 

135 

110 

155 

65 

90 

20 

30 

1.  8 

2.  6 

1.  1 

1.  6 

90 

130 

70 

110 

80 

120 

45 

65 

15 

20 

.  6 

1.  0 

70 

100 

50 

75 

60 

85 

35 

50 

35 

50 

2.  8 

3.  8 

1.  7 

2.  4 

170 

240 

125 

180 

150 

210 

85 

120 

30 

45 

2.  6 

3.  2 

1.  5 

2.  2 

140 

210 

105 

155 

125 

180 

70 

105 

25 

40 

2.  4 

3.  0 

1.  3 

1.  9 

130 

180 

95 

135 

115 

160 

65 

90 

40 

55 

2.  4 

3.  6 

2.  0 

2.  6 

40 

55 

2.  4 

3.  6 

2.  2 

3.  0 

40 

55 

2.  4 

3.  6 

2.  2 

3.  0 

60 

80 

3.  4 

5.  4 

2.  5 

3.  5 

30 

45 

2.  4 

3.  4 

1.  4 

2.  2 

130 

180 

95 

135 

115 

160 

65 

90 

28 

40 

2  2 

3  2 

1.  3 

2.  0 

130 

180 

95 

135 

115 

160 

65 

90 

25 

35 

'i  0 

2.  8 

1.  2 

1.  8 

120 

170 

90 

125 

105 

150 

60 

85 

20 

1.  4 

2.  4 

.  9 

1.  4 

90 

140 

65 

105 

80 

120 

45 

70 

35 

45 

1.  8 

2.  6 

30 

40 

1.  4 

2.  2 

1.  4 

2.  2 

1.  2 

1.  8 

1.  8 

2.  7 

30 

40 

2.  0 

3.  0 

25 

35 

2.  0 

2.  8 

1.  3 

1.  8 

140 

190 

105 

140 

120 

165 

70 

95 

20 

32 

1.  6 

2.  6 

1.  2 

1.  7 

120 

170 

90 

125 

105 

150 

60 

85 

18 

25 

1.  0 

1.  4 

100 

150 

75 

110 

85 

125 

50 

75 

25 

35 

2.  0 

2.  8 

1.  3 

1.  8 

140 

190 

105 

140 

120 

165 

70 

95 

25 

35 

2.  0 

2.  8 

1.  3 

1.  8 

140 

190 

105 

140 

120 

165 

70 

95 

20 

32 

1.  6 

2.  6 

1.  2 

1.  7 

120 

170 

90 

125 

105 

150 

60 

85 

18 

25 

1.  0 

1.  4 

100 

150 

75 

110 

85 

125 

50 

75 

18 

25 

1.  4 

2.  2 

1.  0 

1.  4 

100 

150 

75 

110 

85 

125 

50 

75 

25 

35 

2.  0 

2.  8 

1.  3 

1.  8 

140 

190 

105 

145 

120 

175 

70 

95 

20 

30 

1.  6 

2.  6 

1.  2 

1.  7 

120 

170 

90 

125 

105 

150 

60 

85 

15 

25 

1.  0 

1.  4 

100 

150 

75 

110 

85 

125 

50 

75 

15 

25 

1.  4 

2.  2 

1.  0 

1.  4 

100 

150 

75 

110 

85 

125 

50 

75 

1.  5 

2.  8 

1.  5 

2.  3 

1.  2 

1.  8 

1.  5 

2.  5 

1.  5 

2.  3 

1.  2 

1.  8 

1.  0 

1.  4 

15 

25 

1.  4 

2.  2 

1.  0 

1.  4 

100 

150 

75 

115 

90 

135 

50 

75 

18 

25 

1.  3 

2.  0 

.  8 

1.  2 

85 

125 

65 

95 

80 

115 

40 

65 

1           -  i 

Pasture  (cow- 
acre-days)  ' 


25 
30 
120 
100 
80 
60 
75 
55 
100 
90 
75 
55 
65 
60 
70 
50 
40 
100 
90 
75 
135 
150 
160 
160 
75 
70 
60 
45 
35 
70 
60 
100 
80 
70 
130 
130 
70 
60 
50 
70 
65 
60 
50 
55 
35 
40 
70 
60 
50 
50 
30 
40 
85 
70 
60 
80 
70 
60 
50 
50 
45 
35 
40 


40 
45 
145 
125 
100 
80 
100 
75 
135 
125 
105 
80 
90 
85 
100 
80 
60 
135 
125 
105 
175 
190 
190 
200 
110 
100 
90 
70 
55 
100 
90 
150 
115 
100 
165 
170 
100 
90 
75 
100 
95 
90 
75 
80 
60 
65 
100 
90 
75 
80 
55 
60 
140 
100 
90 
120 
100 
90 
85 
80 
75 
65 
70 


60 


SOIL  SURVEY   SERIES    1959,  NO.  17 


Table  5. — Estimated  average  acre  yiebh  of  specified  crops  under  two 
[In  coluiiuis  A  are  yields  under  present  management;  in  columns  B  are  yields  under  improved  management.  Where 


Soil 


Murrill  gravelly  loam,  0  to  '.i  j)erceiit  slopes  

Miirrill  Kraxclly  loam,  0  to  S  percent  slopes,  moderately  eroded  

Murrill  gravelly  loam,  8  to  15  percent  slopes,  inod(>rately  eroded  

Murrill  gravellN-  loam,  8  to  25  })ercent  sloj)es,  severely  eroded   

Murrill  gravelly  loam,  15  to  25  percent  slopes,  moderately  eroded  

Murrill  gravelly  loam,  25  to  45  i)ercent  sloi)es,  moderately  eroded  

Murrill  gravelly  sandy  loam,  0  to  8  percent  slopes  

Murrill  gravelly  sandy  loam,  3  to  15  percent  slopes,  moderately  eroded  

Murrill  gravelly  sandy  loam,  8  to  15  p(>rcent  slopes,  severely  eroded  ^ 

Murrill  gravelly  sandy  loam,  15  to  25  percent  slopes,  moderately  eroded  

Murrill  gravelly  sandy  loam,  15  to  25  percent  slopes,  severely  eroded  

Murrill  silt  loam,  0  to  3  percent  slopes  

Murrill  sill  loam,  0  to  8  percent  slojx^s,  moderately  eroded  

Murrill  silt  loam,  8  to  15  percent  slopes,  moderately  eroded    

Myers\  ille  channery  loam,  0  to  3  percent  slopes  

Myersville  channery  loam,  3  to  10  percent  slopes,  moderately  eroded  

Myersville  chaiuiery  loam,  10  to  20  percent  slopes,  moderately  eroded  

Myersville  channery  loam,  20  to  30  {)ercent  slojx's,  moderately  eroded  

Myersville  chaiuiery  loatri,  30  to  45  percent  slopes,  moderately  eroded  

Myersville  channery  silt  loam,  3  to  10  percent  slopes,  .severely  eroded  

Myi'rsville  chainier\  silt  loam,  10  to  30  percent  slopes,  severely  eroded  

Myersville  silt  loam,  0  to  3  percent  slopes   _._  

Myersville  silt  loam,  3  to  10  percent  slopes,  moderately  eroded  

Myersville  silt  loam,  10  to  20  j)ercent  slopes,  moderately  eroded  

Myersville  very  stony  loam,  3  to  30  percent  slopes,  moderately  eroded  

Philo  gravelly  sandy  loam    

Philo  silt  loanu   

Pope  fine  sandy  loam  

Pope  gravelly  loam  ,  

Pope  gravelly  sandy  loam  

Pope  silt  loani_  

Pope  stony  gravelly  loam  

Rohrersville  silty  clay  loam,  0  to  8  percent  slopes,  moderately  eroded  

Talladega  gravelly  silt  loam,  thick  solum  variant,  0  to  20  percent  slopes,  moderately  eroded  

Talladega  gravelly  silt  loam,  thick  solum  variant,  10  to  20  percent  slopes,  .severely  eroded  

Talladega  gravelly  silt  loam,  thick  solum  variant,  20  to  30  percent  slopes  I  

Talladega  gravelly  silt  loam,  thick  solum  variant,  20  to  45  percent  slopes,  moderately  eroded... 

Terrace  escarpments  

Thurmont  gravelly  loam,  3  to  8  percent  slopes,  moderately  eroded  

Thurmont  gravelly  loam,  8  to  15  percent  slopes,  moderately  eroded  

Trego  gravelly  silt  loam,  0  to  3  [jercent  slopes  

Trego  gravelly  silt  loam,  3  to  15  percent  slopes,  moderately  eroded  

Tyler  silt  loam,  0  to  8  percent  slopes  

Warners  loam,  0  to  8  percent  slopes  

Waynesboro  gravelly  loam,  0  to  3  percent  slopes  

Waynesboro  gravelly  loam,  0  to  8  percent  slopes,  moderately  eroded  

Waynesboro  gravelly  loam,  8  to  15  percent  slopes,  moderately  eroded  

Waynesboro  gravelly  loam,  3  to  15  percent  slopes,  severely  eroded  

Waynesboro  gravelly  loam,  15  to  25  percent  slopes,  moderately  eroded  

Waynesboro  gravelly  loatn,  15  to  25  percent  slopes,  severely  eroded  

Waynesboro  gravelly  loam,  25  to  45  percent  slopes,  moderately  eroded  

Waynesboro  gravelly  sandy  loam,  0  to  8  percent  slopes  

Waynesboro  gravelly  sandy  loam,  3  to  15  percent  slopes,  moderately  eroded  

Waynesboro  gravelly  sandy  loam,  8  to  15  percent  slopes,  severely  eroded  

Waynesboro  gravelly  sandy  loam,  15  to  25  percent  slopes,  moderately  eroded  

Wehadkee  silt  loam  

Westmoreland  channery  silt  loam,  3  to  10  percent  slopes,  moderately  eroded  

Westmoreland  channery  silt  loam,  10  to  20  percent  slopes,  moderately  eroded  

Westmoreland  channery  silt  loam,  3  to  20  percent  slopes,  severely  eroded  

Westmoreland  channery  silt  loam,  20  to  30  percent  slopes,  moderately  eroded  

Westmoreland  channery  silt  loam,  20  to  30  percent  slopes,  severely  eroded  


60 
50 
40 


35 


35 
30 
22 
22 


60 
50 
40 
60 
55 
45 
30 


35 


60 
55 
45 


35 
45 
60 
60 
45 
60 


50 
30 
20 
20 


35 
30 
40 
35 
40 
70 
45 
42 
40 
30 
35 


Bu. 

95 
85 
70 


Wh(?at 


Bu. 

35 
25 
20 


60 


55 
50 
40 
40 


95 
85 
70 
95 
90 
80 
55 


60 


95 
90 
80 


15 


20 
15 
12 
12 


35 
25 
20 
30 
25 
20 
18 


18 


30 
25 
20 


65 
75 
90 
90 
75 
90 


80 
45 
35 
35 


35 
30 
20 
25 
35 
55 
45 
35 
40 


65 
55 
65 
55 
65 
100 
75 
70 
65 
50 
55 


55 
50 
35 
45 
60 
85 
75 
55 
65 


25 
25 
20 
25 


Bu. 
50 
40 
35 


25 


30 
25 
20 
20 


50 
40 
35 
40 
35 
30 
25 


25 


40 
35 
30 


20 
15 
12 
12 


18 
15 
20 
15 


25 
22 
20 
15 
18 


15 
15 
8 
10 


30 
22 
18 
20 


35 
35 
30 
35 


30 
22 
18 
18 


28 
25 
35 
20 


35 
30 
28 
22 
25 


25 
22 
15 
20 


40 
30 
25 
28 


Barley 


Bu. 
40 
35 
30 


25 


30 
25 
20 
20 


40 

35 
30 
40 
35 
30 
25 


25 


40 

35 
30 


35 
35 
30 
35 


80 
22 
18 
18 


30 

25 
30 
20 


35 
32 
30 
20 
25 


28 
20 
15 
18 


40 
30 
25 
28 


'  Yields  for  cherries  are  not  given  on  an  acre  basis,  but  as  pounds  per  tree. 


WASHINCiTON   COUNTY,  MAHYLAND 


01 


Icrds  of  inainKjOiu  iil  on  lite  soI/k  sititnhh  for  crop.s  or  pdsliii  >,    ( 'out  iiiiird 

yields  are  not  i^iven,  either  the  soil  is  not  suitable  for  that  crop  or  l  here  is  no  information  on  wliich  to  base  an  estimate] 


Oats 

Alfalfa 

Clove 

r  and 

Apples 

Peaches 

Priiii(;s  and 

C/herri(?s  ' 

mixed  hay 

piiini!-: 

A 

B 

A 

B 

A 

B 

A 

B 

 ^- 

A 

B 

A 

B 

A 

li 

Bu 

7ons 

Tons 

1 0718 

_ 

/  0718 

Bu. 

Bu. 

Bu. 

Bu. 

tsu. 

lilt. 

Lh. 

Lb. 

40 

60 

3.  0 

4.  0 

2.  0 

2.  9 

oO 

00 

9  R 

"<  R 

o.  o 

1.  8 

2.  () 

180 

260 

1  Q^i 

1  tjO 

160 

230 

Qn 

I7U 

1  xn 

1  ou 

30 

45 

2.  2 

3.  2 

1.  4 

2.  1 

140 

240 

105 

180 

120 

210 

70 

120 

25 

40 

1.  8 

2.  6 

1.  2 

1.  8 

110 

190 

80 

145 

95 

165 

55 

95 

30 

40 

2.  6 

3.  4 

1.  5 

2  3 

120 

170 

90 

125 

105 

150 

60 

85 

OO 

1 .  o 

9  fi 

1.  2 

1.  7 

1 1  n 

1 1  u 

160 

Rn 

ou 

120 

95 

140 

00 

Rn 

ou 

ou 

1  4 

9  9 

.  9 

1.  3 

Qn 

130 

fit; 

uo 

80 

115 

4'i 

fi'i 
uo 

20 

30 

1.  4 

2.  2 

9 

1.  3 

90 

130 

65 

95 

80 

1 15 

45 

65 

in 

fin 

n 

o.  u 

4  n 

u 

2.  0 

2.  9 

OO 

R 

O.  o 

1.  8 

2.  6 

180 

260 

135 

195 

160 

230 

Qn 

1  "^n 

1  ou 

ou 

^O 

9  9 

9 

O. 

1.  4 

2.  1 

1 4n 

1  rtu 

240 

105 

iRn 

1  ou 

120 

210 

7n 

1  u 

1 9n 

1  ^u 

4.n 

fin 

fi 

o.  u 

4  fi 

2  2 

3.  0 

p>n 
ou 

9 

o.  ^ 

4  n 

U 

l!  9 

2.  7 

180 

260 

135 

1  vo 

160 

230 

90 

1  "^n 

1  ou 

"iO 
oU 

^o 

1  n 

O.  1/ 

4  n 

1.  8 

2.  4 

140 

240 

105 

180 

120 

210 

70 

120 

25 

32 

2.  6 

3.  6 

1.  6 

2.  2 

1 1 0 

1 1  u 

190 

Rn 

ou 

1  4*^ 

95 

165 

Q^ 

OO 

9  8 

o.  o 

1.  7 

2.  3 

125 

220 

Qn 

i7U 

160 

105 

185 

fin 

uu 

1  nn 

1  uu 

40 

60 

3.  6 

4.  6 

2.  2 

3  0 

35 

50 

3.  2 

4.  0 

1.  9 

2.  7 

180 

260 

135 

195 

160 

230 

90 

130 

^O 

■?  n 

4  n 

rr.  U 

l!  8 

2!  4 

1 4n 

1  rrU 

240 

105 

180 

120 

210 

7n 

1  u 

1 9n 

1  ^u 



ou 

'in 

ou 

9  4 

4 

O.  t: 

1 

2.  2 

OO 

fin 

ou 

9  4 

^  4 
O.  T 

1 .  o 

2.  2 

■^fl 
oyj 

'±o 

1  R 
1.  o 

n 

o.  u 

1.  4 

2!  1 

OO 

"in 

ou 

9  4 

^  4 

O.  T 

1.  5 

2.  2 

1.  6 

2.  5 

20 

35 

1.  6 

2.  6 

1.  2 

1.  7 

120 

170 

90 

125 

105 

150 

60 

85 

18 

25 

1.  2 

2.  2 

1  n 

1 .  u 

1 

1.  0 

100 

150 

75 

110 

00 

130 

50 

75 

18 

25 

1.  2 

2.  2 

1  n 

1 .  u 

1  ^ 
1.  0 

100 

150 

75 

110 

Ri^ 
00 

130 

50 

75 

30 

45 

2.  2 

3.  2 

1  4 
1.  t 

9  ^ 

150 

200 

105 

150 

1/0 

75 

100 

25 

40 

2.  0 

2.  8 

1.  2 

2.  0 

120 

170 

90 

130 

105 

150 

60 

85 

1.  0 

9  '^ 

1.  2 

2.  3 

1.  2 

2.  2 

2.  6 

3.  7 

35 

50 

2.  8 

3.  8 

1.  7 

2.  4 

170 

240 

125 

180 

150 

210 

85 

120 

32 

45 

2.  6 

3.  2 

1 

1 .  o 

9  9 

140 

210 

110 

160 

1^0 

1  R^ 

1 00 

70 

105 

30 

40 

2.  4 

3.  0 

1.  3 

1.  9 

130 

180 

95 

140 

110 

160 

65 

90 

90 

"in 
ou 

1  4 

9  9 

.  9 

1.  3 

on 
yu 

1  ^n 

1  ou 

fiI^ 
DO 

inn 

lUU 

75 

115 

•±o 

UO 

25 

35 

2.  0 

2.  6 

1.  1 

1.  7 

120 

170 

90 

125 

105 

145 

60 

85 

28 

40 

2.  2 

3.  2 

1.  3 

2.  0 

130 

180 

95 

140 

110 

160 

65 

90 

20 

30 

1.  8 

2.  6 

1.  1 

1.  6 

90 

130 

65 

100 

80 

115 

45 

65 

15 

20 

.  6 

1.  0 

70 

100 

50 

75 

60 

85 

35 

50 

18 

25 

1.  2 

2.  0 

.  7 

1.  2 

80 

120 

60 

90 

70 

105 

40 

60 

1.  2 

2.  0 

35 

55 

3.  0 

4.  2 

2.  0 

2.  8 

180 

260 

135 

195 

155 

225 

90 

130 

30 

45 

2.  4 

3.  2 

1.  6 

2.  4 

140 

210 

105 

155 

125 

160 

70 

105 

25 

38 

1.  8 

2.  6 

1.  3 

2.  0 

100 

150 

75 

110 

85 

130 

50 

75 

28 

40 

2.  0 

2.  8 

1.  4 

2.  2 

120 

175 

90 

130 

105 

145 

60 

85 

i'ast  lire  Ccow- 
acre-days)  ' 


1 35 
120 
95 
70 
70 
60 
90 
70 
55 
55 
35 
135 
120 
95 
135 
125 
115 
75 
55 
85 
70 
135 
125 
115 
55 
75 
100 
120 
120 
90 
120 
95 
115 
60 
45 
45 
35 
75 
80 
60 
85 
65 
70 
160 
100 
90 
75 
55 
60 
50 
55 
70 
50 
40 
45 
70 
120 
100 
75 
80 
50 


The  number  of  days  in  a  calendar  year  that  1  acre  will  support  1  cow,  horse,  or  steer  without  injury  to  the  pasture. 


62 


SOIL  SURVEY   SERIES    19  5  9,  NO.  17 


Use  and  Management  of  Soils 

This  section  has  four  subsections.  The  first  consists 
of  an  exphmation  of  the  capability  chxssilication  of  soils 
and  of  suf^gestions  for  the  use  and  management  of  the 
soils  of  the  county  for  agriculture;  the  second  discusses 
the  use  of  the  soils  for  forest;  the  third  is  concerned 
with  engineering  properties  of  soils  in  relation  to  high- 
way construction,  irrigation,  sewage  disposal,  and  other 
engineering  jjrojects;  and  the  fouith  discusses  the  use 
of  the  soil  survey  in  community  and  county  planning. 

Capability  Groups  of  Soils 

The  capability  classification  is  a  grouping  of  soils  that 
shows,  in  a  general  way,  how  suitable  they  are  for  most 
kinds  of  farming.  It  is  a  practical  grouping  based  on 
limitations  of  the  soils,  the  risk  of  damage  when  they 
are  used,  and  the  way  they  respond  to  treatment. 

In  this  system  all  tlie  kinds  of  soil  are  grouped  at 
three  levels — the  capability  class,  subclass,  and  miit.  The 
eight  cai^ability  classes  in  the  broadest  groui)ing  are 
designated  by  Roman  numerals  I  through  VIII.  In 
class  I  are  the  soils  that  have  few  limitations,  the  widest 
range  of  use,  and  the  least  risk  of  damage  when  they 
are  used.  Tiie  soils  in  the  other  classes  have  progressively 
greater  natural  limitations.  In  class  VIII  are  soils  and 
landforms  so  rough,  shallow,  or  otherwise  limited  that 
they  do  not  produce  wortliwhile  yields  of  crops,  forage, 
or  wood  products. 

The  subt'lasses  indicate  major  kinds  of  limitations  with- 
in the  classes.  Within  most  of  the  classes  there  can  be  up 
to  four  subclasses.  The  subclass  is  indicated  by  adding 
a  small  letter,  e,  tv,  s,  or  c,  to  the  class  numeral,  for 
example,  He.  The  letter  e  shows  that  the  main  limitat  ion 
is  risk  of  erosion  unless  close-growing  plant  cover  is 
maintained;  w  means  that  water  in  or  on  the  soil  will 
interfere  with  j^lant  growth  or  cultivation  (in  some  soils 
the  wetness  can  be  partly  corrected  by  artificial  drainage)  ; 
s  shows  that  the  soil  is  limited  mainly  because  it  is 
shallow,  droughty,  or  stony,  and  c,  used  in  only  some 
parts  of  the  country,  indicates  that  the  chief  limitation 
is  climate  that  is  too  cold  or  too  dry. 

In  class  I  there  are  no  subclasses,  because  the  soils  of 
this  class  have  few  or  no  limitations.  Class  V  can  con- 
tain, at  the  most,  only  subclasses  to.  s.  and  c.  because  the 
soils  in  it  have  little  or  no  erosion  hazard  but  have  other 
limitations  that  limit  their  use  largely  to  pasture,  range, 
woodland,  or  wildlife. 

Within  the  subclasses  are  the  capability  units,  groups 
of  soils  enough  alike  to  be  suited  to  the  same  crops  and 
pasture  plants,  to  require  similar  management,  and  to 
have  similar  productivity  and  other  responses  to  manage- 
ment. Thus,  the  capability  unit  is  a  convenient  grouping 
of  soils  for  many  statements  about  their  management. 
Capability  units  are  generally  identified  by  numbers 
assigned  locally,  for  example,  IIe-1  or  IIIe-4. 

Soils  are  classified  in  capabilit}^  classes,  subclasses,  and 
units  in  accordance  with  the  degree  and  kind  of  their 
permanent  limitations;  but  without  consideration  of  major 
and  generally  expensive  landforming  that  would  change 
the  slope,  depth,  or  other  characteristics  of  the  soil ;  and 
without  consideration  of  possible  but  unlikely  major  rec- 
lamation projects. 


The  eight  classes  in  tlie  capability  system,  and  the 
subclasses  and  units  in  this  county,  are  given  in  the  list 
that  follows.  The  numbers  of  the  units  in  the  list  are 
not  consecutive  because  they  are  a  i)art  of  a  statewide 
system  of  capability  grouping,  not  all  units  of  wliicli  are 
represented  in  Washington  County. 

(^lass  I.    Soils  that  have  few  limitations  that  restrict 
their  use. 

Capability  unit  I-l.  Deep,  well-drained,  nearly 
level  soils  developed  from  or  influenced  by 
limestone. 

Capability  unit  1-4.  Deep,  well-drained,  nearly 
level  soils  not  significantly  influenced  by  lime- 
stone. 

Capability  unit  1-6.    Deep,  well-drained  soils 
on  flood  plains  and  low  terraces. 
Class  II.    Soils  that  have  some  limitations  that  reduce 
the  choice  of  plants  or  that  require  moderate  conserva- 
tion practices. 

Subclass  He.    Nearly  level  to  gently  sloping  soils, 
subject  to  erosion  if  tilled. 
Capability  unit  IIe-1.    Deep,  well-drained,  near- 
ly level  to  gently  sloping  soils  with  a  friable 
surface  layer;  developed  from  or  influenced 
by  limestone  and  moderately  limited  by  the 
hazard  of  erosion. 
Capability  unit  IIe-4.    Deep,  well-drained,  near- 
ly level  to  gently  sloping  soils;  not  appreciably 
influenced  by  limestone  but  moderately  limited 
by  the  hazard  of  erosion. 
Capability  unit  IIe-10.    Nearly  level  to  sloping, 
well-drained  soils  that  are  somewhat  shallow 
to  moderately  deej)  to  acid  rock. 
Capability  unit  lIe-11.    Nearly  level  to  sloping, 
somewhat  excessively  drained  soils  that  are 
shallow  to  materials  somewhat  influenced  by 
lime. 

Capability  unit  IIe-13.  Gently  sloping,  moder- 
ately eroded  soils  that  have  a  tight  subsoil  that 
restricts  drainage. 

Capability  unit  IIe-19.  Deep,  well-drained, 
nearly  level  to  gently  sloping,  heavy-textured 
or  fine-textured  soils  developed  from  lime- 
stone, and  which  are  moderately  limited  by 
the  hazard  of  erosion. 

Capability  unit  IIe-26.  Deep,  well-drained, 
nearly  level  to  gently  sloping,  friable  soils 
developed  from  cherty  limestone,  and  which 
are  moderately  limited  by  the  hazard  of 
erosion. 

Subclass  IIw.    Moderately  wet  soils. 

Capability  imit  IIw-1.    Nearly  level  to  gently 
sloping  soils  that  have  impeded  drainage  and 
that  are  not  influenced  by  lime. 
Capability  unit  IIw-7.    Nearly  level  to  slop- 
ing, moderately  well  drained  soils  of  flood 
plains  and  upland  depressions,  not  subject 
to  frequent  damaging  floods. 
Subclass  lis.    Nearly  level  to  sloping  soils,  moder- 
ately limited  by  physical  characteristics. 

Capability  unit  ils-1.  Deep,  well-drained,  near- 
ly level,  heavy-textured  or  fine-textured  soils 
that  have  developed  from  limestone;  moder- 


WASHINGTON  COUNTY,  MARYLAND 


ately  limited  by  difFiculty  of  cult  ival  ion  and 

mana<2;ement. 
Capability  unit  IIs-2.    Nearly  level  to  slopinjr, 

sandy  and  <^ravelly  soils;  moderately  limited 

by  low  moisture  capacity. 
Capability  unit  IIs-7.    Nearly  level  to  sloping, 

well-drained  soils  that  are  rather  shallow  to 

acid  rock;  moderately  limited  by  low  moisture 

capacity. 

Class  III.    Soils  that  have  severe  limitations  that  reduce 
the  choice  of  plants  or  that  require  special  conservation 
practices,  or  both. 
Subclass  Ille.    Sloping  soils  that  have  high  risk 
of  erosion  if  tilled. 

Capability    unit    IIIe-1.    Deej),  well-drainod, 
sloping  to  somewhat  rolling  soils  with  a  friable 
surface  layer;  developed  from  or  influenced 
by  limestone,  and  moderately  eroded. 
Capability   unit  Ille— 1.     Deep,  well-drained, 
sloping  to  somewhat  rolling  soils,  not  ap- 
preciably influenced  by  limestone,  and  moder- 
ately eroded. 
Capability   unit   IIIe-5.    Deep,  well-drained, 
gently  to  strongly  sloping,  sandy  and  gravelly 
soils  that  are  moderately  eroded. 
Capability  unit  IIIe-6.    Well-drained  soils  on 
bottom  land  that  have  short,  irregular,  and, 
in  some  places,  rather  steep  slopes;  subject  to 
serious  erosion. 
Capability  unit  IIIe-10.    Sloping  to  strongly 
sloping,  well-drained  soils  that  are  somewhat 
shallow  to  acid  rock,  and  are  moderately 
eroded. 

Capability  unit  IIIe-13.  Sloping  to  strongly 
sloping,  moderately  eroded  soils  that  have  a 
tight  subsoil  that  restricts  drainage. 

Capability  unit  IIIe-26.  Deep,  well-drained, 
sloping  to  strongly  sloping,  moderately  eroded 
soils  tliat  liave  developed  from  cherty  lime- 
stone. 

Capability  unit  IIIe-30.  iModerately  deep  and 
deep,  well-drained,  sloping  and  moderately 
eroded,  or  gently  sloping  and  severely  eroded, 
fine-textured  soils  that  have  developed  from 
limestone. 

Capability  unit  IIIe-31.    Sloping  to  strongly 
sloping,  somewhat  excessively  drained,  moder- 
ately eroded  soils  that  are  shallow  to  materials 
somewhat  influenced  by  lime. 
Capability  unit  IIIe-32.    Sloping  to  strongly 
sloping,  well-drained,  moderately  eroded  soils 
that  are  rather  shallow  to  acid  rock. 
Capability  unit  IIIe-44.    Deep,  well-drained, 
gently  sloping  and  slo])ing,  severely  eroded 
soils  not  influenced  by  limestone. 
Subclass  IIIw.    Wet  soils  that  require  artificial 
drainage  if  tilled. 

Capability  unit  IIIw-1.    Poorly  drained  soils  of 

flood  plains,  not  influenced  by  lime. 
Capability  unit  IIIw-2.    Poorly  drained  and 
very  poorly  drained  soils  of  flood  plains, 
strongly  influenced  by  lime. 
Subclass  Ills.    Soils  that  are  severely  limited  by 
their  physical  characteristics. 

599553—62  5 


Capability  unit  IlIs-2.  Gently  sloping  and  slop- 
ing, excessively  drained,  moderately  eroded, 
very  shallow  soils. 
Class  IV.    Soils  that  have  very  severe  limitations  that 
restrict  the  choice  of  plants,  or  that  recjuire  very  careful 
management,  or  both. 

Subclass  IVe.    Soils  that  are  very  severely  limited 
by  risk  of  erosion  if  tilled. 

Capability  unit  IVe-1.  Moderately  deep  and 
deep,  rolling  to  hilly,  well-drained  soils; 
moderately  to  severely  eroded  and  developed 
from  or  influenced  by  limestone. 

Capability  unit  IVe-3.  Deep,  rolling  to  hilly, 
well-drained  soils,  mostly  moderately  eroded 
and  not  appreciably  influenced  by  limestone. 

Capability  unit  IVe-5.  Deep,  well-drained, 
sloping  to  rolling,  gravelly  and  sandy  soils 
that  are  moderately  and  severely  eroded. 

Capability  unit  IVe-9.  Strongly  sloping  to 
hilly,  moderately  eroded  soils  that  have  a  tight 
subsoil  that  restricts  drainage. 

Capability  unit  IVe-10.  Strongly  sloping  to 
hilly,  well-drained  soils  that  are  somewhat 
shallow  to  acid  rock;  moderately  to  severely 
eroded. 

Capability  unit  IVe-26.    Deep,  well-drained, 
rolling  to  hilly  soils  developed  from  cherty 
limestone;  moderately  to  severely  eroded. 
Capability  unit  IVe-31.    Rolling  to  hilly,  some- 
what excessively  drained  soils  that  are  shallow 
to  materials  somewhat  influenced  by  lime; 
moderately  to  severely  eroded. 
Capability  unit  IVe-32.    Rolling  to  hilly  soils 
tliat  are  shallow  to  acid  rock;  moderately  and 
severely  eroded. 
Class  V.    Soils  that  have  little  or  no  erosion  hazard  but 
have  other  limitations  that  are  impractical  to  remove 
and  that  limit  their  use  largely  to  pasture,  woodland, 
or  wildlife  food  and  cover.  Only  sulaclass  Vs  is  in  this 
county,  but  the  soils  subject  to  frequent  floods,  if 
mapped  separately,  would  be  in  this  class,  subclass  V-^v. 
Subclass  Vs.    Soils  that  are  limited  in  use  to  grazing 
or  woodland  because  of  excessixe  stoniness  or 
rockiness. 

Capability  unit  Vs-1.  Nearly  level,  well-drain- 
ed, very  rocky  soils;  rockiness  consists  of  lime- 
stone outcrops. 

Capability  unit  Vs-2.  Nearly  level  or  very 
gently  sloping,  stony  and  very  stony  soils 
that  are  mostly  well  drained  and  not  afi'ected 
by  limestone. 

Class  VI.  Soils  that  have  severe  limitations  that  make 
them  generally  unsuitable  for  cultivation  and  limit 
their  use  largely  to  pasture,  woodland,  or  wildlife  food 
and  cover. 

Subclass  Vie.  Soils  that  are  moderately  limited  for 
pasture  or  trees  by  risk  of  erosion  if  cover  is  not 
maintained. 

Capability  unit  VIe-1.  Rolling  and  severely 
eroded  or  steep  and  moderately  eroded,  well- 
drained  soils  that  have  developed  from  lime- 
stone. 

Capability  unit  VIe-2.  Rolling  and  severely 
eroded  or  steep  and  moderately  eroded,  well- 


64 


SOIL  SURVEY  SERIES   1959,  NO.  17 


drained,  fairly  deep  soils  that  have  not  been 
appreciably  affected  by  limestone. 
Capability  unit  VIe-3.    Sloping  and  severely 
eroded  to  moderately  steep,  practically  un- 
eroded,  shallow  and  very  shallow  soils. 
Subclass  VIw.    Soils  severely  limited  by  poor  drain- 
age or  by  very  frequent  damaging  overflow,  or 
both. 

Capability  unit  VIav-1.    Poorly  drained  soils 
subject  to  very  frequent  overflows. 
Subclass  Vis.    Soils  severely  limited  by  stones  and 
outcrops  of  rock. 

Capability  unit  VIs-1.  Sloping  to  steep,  well- 
drained,  very  rocky  soils  that  are  moderately 
eroded;  rockiness  consists  of  limestone  out- 
crops. 

Capability  unit  VIs-2.    Gently  sloping  to  moder- 
ately steep,  well-drained,  very  stony  soils  that 
are  not  affected  by  limestone. 
Class  VII.    Soils  that  have  very  severe  limitations  that 
make  them  unsuitable  for  cultivation  and  that  restrict 
their  use  largely  to  pasture,  woodland,  or  wildlife 
shelter. 

Subclass  Vile.    Soils  restricted  in  use  to  woodland 
and  grazing  because  of  extreme  hazard  of  erosion. 
Capability  unit  VIIe-1.    Very  steep  or  very 
severely  eroded  soils,  or  both,  which  have 
developed  from  limestone. 
Capability  unit  VIIe-2.    Very  steep  or  very 
severely  eroded  soils,  or  both,  which  are  not 
influenced  by  limestone. 
Capability  unit  VIIe-3.    Very  steep  or  very 
severely  eroded,  sliallow  soils,  or  both. 
Subclass  VIIs.    Soils  restricted  in  use  to  woodland 
and  grazing  by  extreme  rockiness  or  stoniness. 
Capability  unit  VIIs-1.    Severely  eroded  or  very 
steep,  very  rocky  and  extremely  rocky  soils; 
rockiness  consists  of  limestone  outcrops. 
Capability  unit  VIIs-2.    Shallow  or  steep,  very 
stony  soils  that  are  not  influenced  by  lime- 
stone. 

Class  VIII.    Soils  and  land  types  not  suitable  for  agri- 
culture and  restricted  in  use  to  recreation  and  wildlife. 
Subclass  VIIIs.    Land  restricted  to  nonagricultural 
uses  because  of  adverse  physical  characteristics. 
Capability   unit   VIIIs-1.    Extremely  rough, 
stony,  and  steep  land,  and  large  expanses  of 
barren  rock. 

Management  by  Capability  Units 

On  the  following  pages  each  capability  unit  is  de- 
scribed briefly,  the  soils  in  each  unit  are  listed,  and 
some  suggestions  for  the  use  and  management  of  those 
soils  are  given. 

CAPABILITY  UNIT  I-l 

This  unit  consists  of  deep,  well-drained  soils  that  have 
been  developed  in  material  that  weathered  from  limestone 
or  was  otherwise  strongly  influenced  by  lime.  The  soils 
occupy  nearly  level  areas  in  valleys  and  on  old  stream 
terraces.  None  of  these  soils  has  been  significantly  af- 
fected by  erosion.  All  of  them  have  a  rather  friable  sur- 


face layer,  and  tliey  are  easily  worked  and  managed.  The 
soils  of  this  unit  are — 

Duffield  silt  loam,  0  to  3  percent  slopes. 
Etowah  gravelly  loam,  0  to  3  percent  sloi)es. 
Etowah  silt  loam,  0  to  3  percent  slopes. 

Fraukstown  and  Duffield  chauuery  silt  loams,  0  to  3  percent 
slopes. 

Ilagerstown  silt  loam,  0  to  3  percent  slopes. 
Ilagerstown  silty  clay  loam,  0  to  3  percent  slopes. 

These  soils  occur  throughout  the  great  limestone  valley 
section  of  the  eastern  part  of  the  county.  Their  total 
area  is  about  5,300  acre^s,  or  1.8  ])ercent  of  the  county. 

All  of  the  soils  of  this  capability  unit  are  fertile  and 
productive.  They  have  the  highest  natural  fertility  of 
any  group  of  scjils  in  the  county.  They  are  easily  worked, 
with  little  danger  of  deterioration  by  erosion  or  loss  of 
productiveness.  These  soils  are  well  suited  to  all  crops 
common  to  the  county,  with  the  possible  exception  of 
orchard  crops  because  of  poor  air  drainage  in  many  loca- 
tions. Tliey  are  excellent  for  pasture.  Tliey  are  deep  and 
well  drained  and  have  a  thick,  frialile  surface  layer  of 
medium  to  moderately  fine  texture.  The  Frankstown  soils 
contain  some  chert,  shale,  or  in  some  places  limestone 
fragments,  but  this  in  no  way  interferes  with  cultivation 
or  lessens  their  productiveness. 

Practically  all  soils  of  this  capability  unit  have  been 
cleared  and  are  in  use  for  crops  or  pasture  (except  for 
some  urban  areas).  Agriculture  in  AVashington  County 
is  essentially  dairy  and  livestock  farming.  These  enter- 
prises are  especially  concentrated  and  important  on  the 
soils  in  this  capability  unit.  Some  of  these  soils  are  used 
for  corn  year  after  year,  almost  continuously,  but  a  3-year 
rotation  is  more  common.  Corn  or  some  other  row  crop 
is  generally  followed  by  wheat  or  barley,  or  sometimes 
by  oats,  and  these,  in  turn,  are  followed  by  clover  or 
mixed  hay,  or  sometimes  by  alfalfa.  Some  fields  are  kept 
in  alfalfa  for  3  to  5  years,  then  put  into  corn  for  a  year 
or  more,  and  then  are  reseeded  to  alfalfa.  There  are  some 
excellent  pastures  on  these  soils. 

Although  some  of  these  soils  are  being  used  to  their 
best  advantage  in  agriculture,  urban  and  suburban  ex- 
pansion are  using  up  some  of  the  best  agricultural  land 
in  the  county.  On  the  areas  that  are  still  used  for  agri- 
culture, there  are  some  measures  that  would  increase  pro- 
ductiveness. Soil  testing  should  be  more  universally  done, 
in  order  that  fertilizers  and  lime  can  be  vised  to  their 
greatest  effectiveness.  AAHien  corn  is  grown  almost  con- 
tinuously, a  winter  cover  crop  should  be  grown  between 
corn  crops.  None  of  these  soils  has  a  slope  of  more  than 
3  percent,  but  the  long  slopes  should  be  farmed  in  strips 
at  right  angles  to  the  direction  of  the  grade,  to  help 
prevent  possible  losses  by  erosion. 

These  are  the  best  soils  of  the  county.  They  should 
be  more  intensively  farmed  and  even  better  managed. 
They  contribute  much  to  the  economy  of  the  county,  but 
could  contribitte  even  more. 

CAPABILITY  UNIT  I^ 

This  unit  consists  of  deep,  well-drained,  nearly  level 
soils.  The  soils  occupy  small  areas  on  flat  ridgetops  in  the 
uplands  and  in  some  valleys,  and  they  are  also  on  some  old 
terraces.  They  have  not  been  significantly  influenced  by 
limestone,  except  for  some  areas  of  the  Murrill  soils. 


WASHINGTON  COUNTY,  MAUVLANU 


65 


None  of  the  soils  in  this  unit  luis  been  significantly  af- 
fected by  erosion.  The  soils  in  (his  unit  arc — 

Fauquier  chauuory  loam,  0  to  5  percent  slopes. 
Fauquier  silt  loam,  0  to  3  percent  slopes. 
Hif^hlield  gravelly  loam,  0  to  5  percent  slopes. 
Holston  gravelly  loam,  0  to  3  percent  slopes. 
Holston  silt  loam,  0  to  3  percent  slopes. 
Laidig  gravelly  loam,  0  to  3  percent  slopes. 
Murrill  gravelly  loam,  0  to  3  percent  slopes. 
Murrill  silt  loam,  0  to  3  percent  slopes. 
Myersville  channery  loam,  0  to  3  percent  slopes. 
Myersville  silt  loam,  0  to  3  percent  slopes. 
Waynesboro  gravelly  loam,  0  to  3  percent  slopes. 

These  soils  occur  in  many  parts  of  the  county.  Al- 
thouo-h  none  of  them  is  strictly  within  the  great  lime- 
stone valley,  some  of  them  are  on  foot  slopes  and  other 
areas  adjacent  to  the  valley.  The  total  area  of  the  soils 
is  about  3,300  acres,  or  1.1  percent  of  the  county. 

These  soils  ai'e  deep  and  not  eroded;  they  have  a 
moderate  to  high  moisture-supplying  capacity.  The  soils 
have  little  limitation  for  use  for  any  purpose.  They  differ 
from  the  soils  of  capability  unit  1-1  in  that  they  are 
commonly  more  acid,  are  much  more  gravelly  or  chan- 
nery, and  as  a  rule  are  somewhat  less  productive.  Al- 
though a  number  of  different  soils  make  up  this  capa- 
bility unit,  the  individual  areas  of  most  of  them  are 
rather  small.  They  occupy  the  most  nearly  level  spots 
in  much  larger  areas  where  most  of  the  soils  are  sloping 
to  hilly. 

None  of  these  soils  has  been  significantly  affected  by 
erosion.  Because  they  are  acid,  the  soils  need  lime,  and 
they  also  need  a  good  fertility  program.  They  are,  on 
the  average,  only  fairly  well  supplied  with  plant  nu- 
trients. 

The  soils  of  capability  unit  are  used  for  all  of 
the  common  crops  of  the  county  and  for  good  quality 
pasture.  Some  of  them,  particularly  those  of  the  Laidig 
and  Murrill  series,  have  sufficiently  good  air  drainage 
for  good  orchards,  but  this  is  not  true  of  all  the  areas. 
Most  of  these  soils  have  been  cleared  and  put  to  use,  but 
some  small  areas  are  still  in  forest.  Yields  are  commonly 
less  than  on  soils  of  capability  unit  I-l,  yet  some  of  the 
finest  farms  in  the  county  are  located  where  these  soils 
are  being  well  managed. 

Because  they  generally  occur  in  small  spots,  manage- 
ment is  commonly  the  same  as  for  surrounding  or  ad- 
jacent soils  that  make  up  a  greater  part  of  many  fields. 
The  surrounding  soils  may  belong  to  almost  any  capa- 
bility unit,  but  most  commonly  are  in  capability  unit 
IIe-4  or  IIIe-4.  The  soils  of  capability  unit  1-4  require 
somewhat  more  careful  management  than  soils  of  capa- 
bility unit  I-l,  because  they  are  somewhat  less  fertile. 
Either  3-year  or  4-year  I'otations  are  ideal  for  them,  but 
rotations  can  well  be  extended  to  5  or  more  years  if  such 
a  crop  as  alfalfa  occupies  the  land  for  3  or  more  years. 

Under  average  present  management,  yields  on  soils  of 
capability  unit  1-4  are  fairly  high,  but  could  be  im- 
proved considerably  by  more  careful  management  and 
treatment.  Good  average  yields  of  corn,  for  instance,  are 
probably  between  50  and  70  bushels  per  acre,  but  these 
yields  could  be  increased  by  20  to  30  bushels.  It  is  not 
at  all  unusual  to  have  yields  of  90  to  100  bushels  or  more 
on  the  best  managed  fields,  and,  if  improved  manage- 
ment were  more  widely  practiced,  the  average  yields  of 
corn  could  approach  such  figures. 


CAi'Ar.ii.ri'Y  i  .M'j-  I  <; 

This  unit  consists  of  nearly  level,  well-drained,  friable 
soils  on  flood  plains  and  on  low  sireain  terraces.  'J'hese 
soils  may  be  flooded,  but  normally  flooding  is  very  infre- 
quent. The  soils  of  this  unit  are — 

Ashton  fine  sandy  loam,  0  to  ti  percent  slopes. 

Congaree  silt  loam  and  gravelly  loam. 

Huntington  line  sandy  loam. 

Huntington  gravelly  loam. 

Huntington  silt  loam. 

Huntington  silt  loam,  local  allmiuiri. 

Pope  line  sandy  loam. 

Pope  gravelly  loam. 

Pope  silt  loam. 

These  soils  are  located  along  streams  and  rivers  in  all 
parts  of  the  county.  The  largest  areas  are  within  flood 
plains  in  the  great  limestone  valley,  or  in  upland  depres- 
sions where  similar  materials  have  accumulated.  Small, 
very  narrow  strips  that  lie  along  some  of  the  smaller 
streams  and  drainageways  are  generally  used  and  man- 
aged like  the  adjacent  soils.  The  total  area  of  this  iinit 
is  about  11,500  acres,  or  3.9  percent  of  the  county. 

These  soils  are  well  suited  to  most  of  the  common  crops 
and  to  pasture.  The  Pope  and  Congaree  soils  are  fairly 
fertile,  and  crops  on  them  respond  well  to  management; 
the  Huntington  and  Ashton  soils  are  even  more  fertile 
and  productive.  Although  orchards  are  not  generally 
planted  on  soils  of  the  flood  plains,  there  are  some  or- 
chards on  these  soils  in  the  county.  Some  crops  can  be 
grown  on  these  soils  without  fertilizer  or  lime,  but  the 
practice  is  not  recommended.  The  moisture  supply  is 
nearly  always  adequate  for  crops,  since  these  deep  soils 
are  readily  penetrated  by  roots. 

A  few  areas  of  these  soils  may  be  subject  to  floods  that 
damage  crops.  The  use  of  these  areas  should  be  adjusted 
to  the  flood  hazard;  for  example,  areas  that  are  very 
frequently  flooded  should  be  kept  in  permanent  sod  or 
trees. 

Corn  and  hay  are  the  principal  crops.  Corn  may  be 
grown  continuously  year  after  year,  preferably  with  a 
cover  crop  between  corn  seasons.  Mixed  hay  is  a  com- 
mon crop  and  may  be  grazed  part  of  the  time.  Small 
grains  as  a  rule  are  not  grown,  because  there  is  some 
danger  of  flooding  and  lodging. 

The  average  pi-oductivity  of  these  soils,  particularly 
of  the  Ashton  and  the  Huntington  soils,  is  high.  Of  spe- 
cial importance  is  the  fact  that  well-managed  pastures 
on  these  soils  have  perhaps  the  greatest  carrying  capa- 
cities of  any  pastures  in  the  county.  Fertilizer  and  lime 
should  be  used  on  these  soils  as  indicated  by  soil  tests, 
and  they  will  generally  be  applied  to  corn,  whether  it  is 
grown  in  rotation  or  as  a  continuous  crop.  Animal 
manure  is  especially  valuable  for  corn. 

Weeds  are  a  common  pest  in  pastures  unless  they  are 
controlled.  They  can  be  controlled  with  chemical  weed 
killers,  or  by  proper  fertilization,  carefidly  regulated 
grazing,  and  mowing  at  proper  intervals.  Perhaps  the 
most  valuable  single  tool  in  pasture  management  on  any 
soil  is  the  mowing  machine,  and  the  machine  is  easily 
used  on  these  soils. 

CAPABILITY  UNIT  IIe-1 

This  mut  consists  of  deep,  well-drained,  nearly  level 
to  gently  sloping  soils  that  have  a  friable  surface  layer. 


66 


SOIL  SURVEY  SERIES   1959,  NO.  17 


These  soils  liave  been  developed  in  or  slronglj^  influenced 
by  niatorial  that  weathered  from  limestone,  and  they  are 
moderately  limited  by  the  hazard  of  erosion.  The  soils  of 
this  unit  are — • 

Duffield  silt  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Dunmore  cherty  silt  loam,  3  to  8  percent  slopes,  moderately 
eroded. 

Etowah  gravelly  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Etowah  silt  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Frankstown  and  Duliield  channery  silt  loams,  3  to  8  percent 

slopes,  moderately  eroded. 
Ilagerstown  silt  loam,  0  to  8  percent  slopes,  moderately  eroded. 
Hagerstown  silty  chiy  loam,  0  to  8  percent  slopes,  moderately 

eroded. 

Westmoreland  channery  silt  loam,  3  to  10  percent  slopes, 
moderately  eroded. 

These  soils  are  e.xtensive  in  the  limestone  valley,  and 
they  occur  in  scattered  areas  in  the  western  part  of  the 
county.  They  occupy  about  48,500  acres,  which  is  16.1 
percent  of  the  comity. 

Besides  being  deep,  well  drained,  and  fertile,  the  soils 
of  this  capability  unit  are  fairly  easily  worked  and 
manaoed  and  ai"e  highly  productive.  Although  erosion  is 
a  problem,  it  is  not  a  serious  one  under  good  manage- 
ment. The  soils  can  be  fairly  easily  conserved.  Since 
there  has  been  some  erosion,  these  soils  are  slightly  less 
productive,  on  the  average,  than  those  of  capability  unit 
I-l.  The  soils  of  unit  IIe-1  need  careful  attention,  and 
most  of  them  have  been  getting  it  ever  since  the  area  was 
first  settled. 

These  soils  are  used  the  same  way  as  the  soils  of  capa- 
bility unit  I-l ;  that  is,  for  corn,  small  grains,  hay  ci'ops, 
and  pasture,  in  support  of  the  dominant  livestock  eco- 
nomy where  they  occur.  In  addition,  some  areas,  partic- 
ularly of  Dunmore  and  Westmoreland  soils,  are  used  for 
orchards.  In  general  farming,  3-year  and  4-year  rota- 
tions are  commonly  used.  The  chief  single  crops  are  corn 
and  hay,  generally  grown  in  a  rotation  of  1  year  of  corn 
followed  by  2  or  more  years  of  mixed  hay  or  of  alfalfa. 
These  soils  are  particularly  well  suited  to  legumes,  such 
as  alfalfa  and  clover,  which  in  turn  contribute  much  to 
the  fertility  and  productivity  of  the  soils.  Yields  of  all 
crops  are  high  under  average  prevailing  management. 

The  special  management  needed  on  these  soils  consists 
chiefly  of  the  maintenance  of  fertility  and  the  prevention 
of  erosion.  The  soils  should  be  tested  and  given  lime 
and  fertilizer  according  to  the  needs  indicated.  Full 
use  should  be  made  of  all  manure  and  crop  residue. 
Erosion  is  not  serious.  It  never  will  be  a  very  great 
hazard  if  proper  contour  tillage  and  stripcropping,  with 
supporting  practices,  are  used.  In  some  places  runoff 
water  should  be  diverted  into  natural  drainageways,  and 
the  drainageways  should  be  kept  cai'efully  sodded.  Out- 
lets of  such  diversions  must  be  well  prepared  and  care- 
fully maintained  or  the  concentrated  water  is  likely  to 
cause  gullies. 

These  soils  are  the  most  important  in  the  county  be- 
cause of  their  extent  and  their  high  productivity.  If 
they  are  properly  conserved  and  carefully  managed,  pro- 
duction can  become  even  higher  and  there  will  never  be 
more  than  a  slight  danger  of  damaging  soil  losses.  The 
soils  are  probably  more  productive  now  than  they  were 
a  hundred  j^ears  ago. 


CAPABILITY  UNIT  IIe-4 

This  unit  consists  of  deep,  well-drained,  nearly  level 
to  gently  sloping  soils  that  were  developed  in  nonlimy 
materials  and  are  not  appreciably  influenced  by  limestone. 
The  soils  are  similar  to  those  of  capability  unit  I^,  but 
they  are  more  limited  by  the  hazard  of  erosion.  In  this 
unit  are — 

Braddock  and  Thurmont  gravelly  loams,  3  to  8  percent  slopes, 

moderately  eroded. 
Edgemont  and  Laidig  channery  loams,  0  to  12  percent  slopes. 
Fauquier  channery  loam,  5  to  10  percent  slopes,  moderately 

eroded. 

Fauquier  silt  loam,  3  to  10  percent  slopes,  moderately  eroded. 
Ilighfleld  gravelly  loam,  5  to  10  percent  slopes,  moderately 
eroded. 

Holston  gravelly  loam,  0  to  8  percent  slopes,  moderately  eroded. 
Holston  silt  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Laidig  gravelly  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Murrill  gravelly  loam,  0  to  8  percent  slopes,  moderately  eroded. 
Murrill  silt  loam,  0  to  8  percent  slopes,  moderately  eroded. 
Myersville  channery  loam,  3  to  10  percent  slopes,  moderately 
eroded. 

Myersville  silt  loam,  3  to  10  percent  slopes,  moderately  eroded. 
Thurmont  gravelly  loam,  3  to  8  percent  slopes,  moderately 
eroded. 

Waynesboro  gravelly  loam,  0  to  8  percent  slopes,  moderately 
eroded. 

These  soils  are  located  throughout  the  county  except 
in  the  limestone  valley.  The  total  area  is  about  22,200 
acres,  or  7.5  percent  of  the  county.  The  soils  are  much 
like  those  of  capability  unit  IIe-1,  except  that  they  have 
not  been  appreciably  influenced  by  limestone  in  their 
development. 

All  of  these  soils  are  acid  unless  they  have  been  limed, 
although  in  some  places  lime  is  present  in  the  deep,  un- 
derlying strata.  They  are  all  at  least  moderately  fertile, 
and  the  best  of  these  soils,  particularly  those  of  the 
Fauquier,  Highfield,  Murrill,  and  Myersville  series,  are 
highly  productive.  Perhaps  the  soils  of  the  lowest  na- 
tural productivity  are  those  of  the  Laidig  series.  All 
the  soils  are  medium  textured,  and  many  of  them  have 
considerable  amounts  of  gravel  or  schist  fragments  in  the 
surface  layer  and  throughout  the  profile.  The  surface 
layer  is  friable  and  easily  worked  when  moist. 

Some  of  the  soils  of  this  capability  unit  have  slopes  up 
to  10  or  12  percent,  and,  on  some  of  the  sloping  soils, 
there  has  been  a  moderate  amount  of  erosion.  Nowhere 
is  erosion  very  serious,  but  everywhere  it  is  more  of  a 
hazard  than  it  is  on  the  soils  of  capability  unit  1-4. 

These  soils  are  widely  used  for  livestock  and  general 
farming.  Many  of  the  better  orchards  are  concentrated 
on  them,  particularly  in  the  areas  near  Smithsburg, 
Boonsboro,  and  Clear  Spring.  This  is  not  only  because 
the  soils  are  well  drained,  permeable,  and  fertile,  but 
also  because  they  are  in  positions  that  have  the  good  air 
drainage  so  essential  for  practical  orcharding.  Apples, 
peaches,  prunes,  and  plums  are  extensively  grown. 

Cropping  systems  are  essentially  the  same  as  for  the 
soils  in  capability  unit  1-4.  The  3-year  rotation  is  the  most 
commonly  followed,  but  rotations  may  extend  as  long  as 
5  or  6  years  if  alfalfa  is  grown  for  3  years  or  more.  A 
large  proportion  of  the  soils  is  in  pasture,  probably  more 
than  in  any  other  capability  unit.  The  pastures  generally 
have  been  well  managed,  and  their  carrying  capacity  is 
high.  Grass-clover  mixtures  are  most  commonly  used  for 
grazing.  Much  hay  is  produced,  consisting  of  alfalfa, 


WASHINGTON  COUNTY,  MARYLAND 


67 


clovers,  or  mixtures  of  these.  Most  of  these  soils  have 
been  fairly  well  managed,  and  many  of  the  farmers  are 
cooperators  with  the  soil  conservation  district. 

The  chief  re(iuirements  for  soil  management  are  to 
maintain  fertility  and  prevent  erosion.  Tliese  soils  need 
more  fertilizer,  manure,  and  lime  than  do  the  soils  of  the 
limestone  valley.  If  sucli  amendments  are  used  according 
to  the  needs  indicated  by  soil  tests,  fertility  and  produc- 
tivity can  be  maintained. 

On  long  slopes  that  have  gradients  of  10  to  12  percent, 
contour  tillage,  st ripcropping,  and  very  careful  water 
disposal  are  needed  to  prevent  loss  of  soil.  These  meas- 
ures, plus  the  maintenance  of  a  vegetative  cover  most 
of  the  time  will  prevent  soil  losses,  or  at  least  limit  them 
to  allowable  amounts. 

Management  of  these  soils  generally  has  been  good, 
but  it  can  be  improved  on  many  farms.  Observations 
show  that  the  average  productivity  of  these  soils  can  be 
increased  by  perhaps  30  to  40  percent  through  the  use 
of  methods  that  are  already  known.  A  few  of  the  better 
farms  are  producing  at  least  that  much  more  than  aver- 
age farms  on  the  same  soils.  With  improved  manage- 
ment, these  soils  can  continue  to  produce  high  yields  for 
the  indefinite  future  with  little,  if  any,  deterioration. 

CAPABILITY  UNIT  IIe-10 

In  this  unit  are  nearly  level  to  sloping,  well-drained 
soils  that  are  somewhat  shallow  to  moderately  deep  over 
shale  or  schist.  Some  areas  have  lost  part  of  the  original 
surface  layer  through  erosion,  and  danger  of  erosion  is 
a  limiting  hazard  on  all  areas.  The  soils  of  this  unit  are — 

Calvin  channery  loam,  3  to  10  percent  slopes,  moderately 
eroded. 

Calvin  channery  fine  sandy  loam,  3  to  10  percent  slopes, 

moderately  eroded. 
Chandler  silt  loam  and  channery  silt  loam,  0  to  10  percent 

slopes. 

Chandler  silt  loam  and  channery  silt  loam,  3  to  10  percent 
slopes,  moderately  eroded. 

These  soils  are  in  various  parts  of  the  county,  except  in 
the  limestone  valley.  They  occupy  about  1,600  acres,  or 
one-half  of  1  percent  of  the  county. 

Because  these  soils  are  somewhat  shallow  to  moder- 
ately deep  and  are  well  drained,  they  become  somewhat 
droughty  during  long,  dry  periods.  All  of  these  soils 
are  strongly  acid  and  rather  low  in  fertility,  so  they  are 
less  productive,  on  the  average,  than  most  of  the  other 
soils  of  capability  class  II.  General  farming  is  the  chief 
agricultural  pattern,  with  some  emphasis  on  orchards. 
The  Calvin  soils  are  in  the  western  part  of  the  county, 
and  the  Chandler  soils,  mostly  near  the  Potomac  River 
north  and  west  of  Harpers  Ferry. 

In  general  farming  the  3-year  rotation  of  corn,  a  small 
grain,  and  hay  is  most  commonly  used.  However  from 
a  standpoint  of  maximum  soil  protection  and  greatest 
production  over  long  periods,  the  rotation  could  be  in- 
creased to  4  or  5  years.  Hay  crops  or  pasture  should 
be  used  to  extend  the  rotations.  On  these  rather  shallow, 
acid  soils,  alfalfa  does  not  last  so  well  as  on  most  deeper 
soils,  and  it  is  seldom  kept  in  fields  for  more  than  2  years 
or  possibly  3  years. 

All  of  the  soils  of  capability  unit  IIe-10  require  meas- 
ures to  maintain  fertility,  and  they  should  have  all  the 
moisture-conserving  practices  that  can  be  applied.  Con- 


siderable amounts  of  fertilizer  will  be  required,  and  a 
great  deal  of  lime.  Amounts  to  be  used  should  be  de- 
cided only  after  the  soils  have  been  tested  for  content 
of  the  various  plant  milrients  and  the  requirement  for 
lime  has  been  determined.  All  available  animal  inanure 
and  i)lant  residue  should  be  returned  to  the  soil.  Legu- 
minous crops  and  cover  crops  should  be  grown  wherever 
possible.  Contour  tillage  and  contour  stripcropping  will 
be  especially  valuable  in  conserving  moisture  and  in 
checking  erosion.  "VVlierever  w^ater  concentrates,  as  in 
waterways  and  outlets,  it  shovdd  be  dispersed  on  a  sodded 
area.  This  will  slow  down  the  flow  of  water  and  allow 
more  to  penetrate  into  the  soil,  and  the  sod  will  catch 
much  of  the  soil  material  carried  in  the  water. 

CAPABILITY  UNIT  IIe-11 
This  unit  consists  of  nearly  level  to  sloping,  somewhat 
excessively  drained  soils  that  are  moderately  deep  over 
shale  material  that  contains  some  lime.  These  soils  are 
limited  by  shallowness  and  by  the  moderate  hazard  of 
erosion.  They  are — • 

Litz  channery  loam,  3  to  10  percent  slopes,  moderately  eroded. 
Litz-Teas  channery  silt  loams,  0  to  8  percent  slopes. 

The  soils  of  this  unit  are  a  little  more  fertile  than  the 
soils  of  capability  units  IIe-10  and  IIIs-2,  because  of  the 
influence  of  lime.  They  are  in  scattered  areas  in  the  west- 
ern part  of  the  coimty,  and  also  on  some  narrow  ridge- 
tops  within  the  limestone  valley.  Their  total  area  is 
about  1,500  acres,  or  one-half  of  1  percent  of  the  county. 

Some  of  the  Litz  channery  loam  is  still  in  forest,  but 
practically  all  of  the  acreage  of  Litz-Teas  channery  silt 
loams  in  this  capability  unit  are  in  more  intensive  use. 
Even  though  these  soils  are  moderately  deep  and  tend  to 
be  droughty  at  times,  they  are  rather  extensively  used 
for  orchards.  Orchards  on  them  are  somewhat  more  pro- 
ductive than  those  on  the  other  somewhat  shallow  soils 
of  the  same  areas,  notably  those  of  capability  units 
IIe-10  and  IIIs-2. 

Although  erosion  has  not  been  very  active  on  the  soils 
of  capability  unit  IIe-11,  the  hazard  of  erosion  is  pre- 
sent. For  control  of  erosion  and  management  of  the  soil, 
the  same  practices  are  needed  that  have  been  indicated 
for  capability  unit  IIe-10.  With  these  practices,  the 
soils  of  capability  unit  IIe-11  should  be  productive  in 
spite  of  their  shallowness  and  tendency  to  be  droughty. 

CAPABILITY  UNIT  IIe-13 

This  unit  consists  of  gently  sloping,  moderately  eroded 
soils  that  have  a  tight  subsoil  that  restricts  drainage. 
These  soils  are  only  moderately  well  drained,  even  though 
they  have  good  surface  drainage.  The  soils  of  this  unit 
are — 

Buchanan  gravelly  loam,  8  to  8  percent  slopes,  moderately 
eroded. 

Landisburg  cherty  silt  loam,  3  to  8  percent  slopes,  moderately 
eroded. 

Leadvale  gravelly  silt  loam,  3  to  8  percent  slopes,  moderately 
eroded. 

;\Ionougahela  gi'avelly  loam,  3  to  8  percent  slopes,  moderately 
eroded. 

Monongahela  silt  loam,  3  to  8  percent  slopes,  moderately 
eroded. 

These  soils  are  in  various  parts  of  the  county,  outside 
the  limestone  valley.  The  areas,  as  a  rule,  are  small.  Their 


68 


SOIL  SURVEY  SERIES   195  9,  NO.  17 


total  area  is  about  2,600  acres,  or  about  eight-tent  lis  of 
1  percent  of  the  county. 

These  soils  are  used  for  general  crops,  but  many  of 
them  are  still  in  forest.  Altliovigh  surface  drainage  is 
good,  much  water  is  retained  in  tlie  soil  in  wet  seasons 
because  internal  drainage  is  slow.  This  causes  lieaving, 
particularly  in  spring;  perennial  cro2)s,  such  as  alfalfa, 
arc  damaged,  and  the  stands  do  not  last  long,  liecause 
of  wetness  in  spring,  corn  is  genei'ally  planted  later  on 
these  soils  than  on  well-drained  soils. 

The  slow  internal  drainage  promotes  runoff,  so  the 
hazard  of  erosion  is  greater  than  is  normal  on  moderate 
slopes.  Runoff  shoidd  be  di\'erted  above  areas  of  these 
soils  wherever  possible.  Strips  should  not  be  exactly  on 
the  contour,  but  graded  to  promote  drainage.  All  outlets 
of  waterways  and  diversion  terraces  nmst  be  sodded  or 
otherwise  caref\dly  protected  to  prevent  the  formation 
of  rills  and  gullies. 

In  general  fai-ming  a  -'5-year  rotation  of  row  crops, 
grain,  and  hay  is  satisfactory.  The  soils  are  very  good 
for  pasture,  and  tall  grasses  and  wet-tolerant  clovers 
grow  well.  Grazing  should  be  limited  during  wet  pe- 
riods to  prevent  puddling  and  compacting  of  the  surface 
layer. 

These  soils  are  subject  to  erosion  and  also  to  the  haz- 
ards of  restricted  internal  drainage.  To  manage  them 
successfully,  it  is  necessary  to  provide  cover  and  control 
runoff,  provide  surface  drainage,  choose  water-tolerant 
crops,  and  avoid  cultivating  or  trampling  when  the  soil 
is  wet. 

CAPABILITY  UNIT  IIe-19 

This  unit  consist  of  deep,  well-drained,  nearly  level 
or  gently  sloping,  fine-textured  soils  that  are  umlerlain 
by  limestone  and  are  moderately  limited  by  the  hazard 
of  erosion.  The  soils  of  this  unit  have  a  finer  textured 
surface  layer  than  those  of  capability  unit  IIe-1,  and  they 
are  more  difficult  to  cultivate  and  to  manage.  The  soils 
of  this  unit  are — 

Benevola  clay  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Hagerstown  clay  loam,  0  to  8  percent  slopes,  moderately  eroded. 

These  soils  are  in  various  parts  of  the  limestone  valley. 

They  amount  to  about  1,200  acres,  or  four-tenths  of  1 
percent  of  the  county. 

These  soils  contain  lime  and  are  above  average  in 
fertility.  They  are  also  hea\^  and  tend  to  warm  up  late 
in  spring.  The  soils  are  gently  sloping  but  wash  easily 
because  water  does  not  readily  penetrate  the  fine-textured 
surface  layer.  Plowing  and  cultivating  are  difficult  and 
almost  impossible  when  the  soil  is  too  wet  or  too  dry. 
The  soils  are  sticky  and  plastic;  they  puddle  and  form 
clods  easily  if  worked  a  little  too  wet,  and  generally  are 
very  hard  when  they  are  too  dry.  Maintaining  good  soil 
structure  by  turning  mider  cover  crops  and  crop  residues 
and  by  using  large  amounts  of  animal  manure  may  be 
one  key  to  success  in  managing  these  soils. 

When  properly  managed,  these  are  excellent  agricul- 
tural soils  and  are  suitable  for  practically  all  crops. 
Erosion  control  is  highly  important.  Farming  should 
be  done  in  well-graded  strips,  with  diversions  and  water- 
ways to  control  and  dispose  of  water  with  great  care. 


CAPABILITY  UNIT  IIe-26 

This  unit  consists  of  deep,  well-drained,  nearly  level 
to  gently  sloping,  friable  soils  that  are  underlain  by 
cherty  limestone  and  are  moderately  limited  by  the  haz- 
ard of  erosion.  The  surface  of  the  soil  is  generally  cov- 
ered with  small  chert  fragments  that  help  to  protect  it 
from  erosion.  The  soils  of  this  unit  are — 

EUiber  cherty  loam,  5  to  12  percent  slopes,  moderately  eroded. 
Frederick  cherty  silt  loam,  0  to  8  percent  slopes,  moderately 
eroded. 

These  are  excellent  orchard  soils  where  air  drainage  is 
satisfactory.  They  occur,  generally  on  ridgetops,  in  the 
western  part  of  the  county.  The  total  area  is  about  1,200 
acres,  or  four-tenths  of  1  percent  of  the  county. 

For  general  farming,  a  4-year  rotation  with  legume 
hay  for  2  years  is  well  suited  to  these  soils.  Although 
erosion  is  the  most  important  management  problem,  the 
soils  are  not  so  readily  eroded  as  many  other  soils  that 
have  the  same  degree  of  slope.  The  soils  are  somewhat 
open  and  porous,  and  the  numerous  chert  fragments 
tend  to  protect  tlie  surface  from  rain  splash  and  from 
washing. 

In  Washington  County  these  soils  are  used  intensively 
for  orchards.  They  hold  moisture  well,  and  nearly  all 
the  areas  have  good  air  drainage.  Most  orchards  are 
kept  covered  with  a  sod  of  grasses  and  clovers,  Avhich 
make  excellent  green  manui'e  when  turned  under  once 
a  year.  The  orchards  should  be  planted  and  cultivated 
on  the  contour.  The  combination  of  contour  cultivation 
and  sod  cover  will  check  runoff  and  encourage  water  to 
enter  the  soil,  thus  reducing  erosioii  damage  while  build- 
ing up  the  moisture  supply  for  the  orchard  trees. 

CAPABILITY  UNIT  IIw-1 

This  unit  consists  of  nearly  level  or  very  gently  slop- 
ing soils  that  have  somewhat  impeded  drainage.  The 
soils  are  on  uplands  and  terraces  and  have  not  been  in- 
fluenced by  lime.  The  soils  of  this  unit  are — 

Buchanan  gravelly  loam,  0  to  3  percent  slopes. 
Leadvale  gravelly  silt  loam,  0  to  3  percent  slopes. 
Monongahela  silt  loam,  0  to  3  percent  slopes. 
Trego  gravelly  silt  loam,  0  to  3  percent  slopes. 

Small  tracts  of  these  soils  are  scattered  throughout 
most  of  the  county  outside  of  the  limestone  valley.  There 
are  onl}^  about  660  acres,  or  two-tenths  of  1  percent  of 
the  county. 

The  soils  of  this  capability  unit  are  like  those  of  capa- 
bility units  IIe-13  and  IIIe-13,  except  that  they  are 
nearly  level.  iVlthough  they  are  considei'ed  to  be  mod- 
erately well  drained,  they  are  so  nearly  level  that  they 
remain  wet  for  rather  long  periods  and  are  slow  to  dry 
out  and  warm  up  in  spring.  The  wetness  resulting  from 
impeded  drainage  in  this  climate  is  more  of  a  problem 
than  is  the  control  of  erosion. 

The  use  of  these  soils  is  limited  by  their  impeded  drain- 
age and  also  by  their  rather  low  fertilit3^  The  soils  are 
used  mostly  for  corn,  hay  crops,  and  pasture.  Alfalfa 
is  not  well  suited  unless  good  drainage  can  be  established, 
because  the  soil  tends  to  heave  in  cold  weather.  The  most 
common  cropping  systems  are  either  continuous  corn  or 
corn  followed  b}-  hay  for  1  year  or  more. 


WASHINGTON  COUNTY,  MARYLAND 


09 


The  preseni  uses  of  those  soils  :irc  prohiihly  (lie  most 
suitable.  Hay  crops  should  iuclude  tail  o-i  asses  and  clovers 
that  tolerate  wetness.  The  same  plants  are  also  suitable 
for  pasture.  Fertility  nnist  be  maintained  and  lime  ap- 
plied i'oi-  maxinuun  productivity. 

Kunoll'  water  from  hio-her  areas  should  be  diverted 
around  these  soils  and  away  from  them.  Diversion  ter- 
races will  accomplish  part  of  the  draina<^e  that  is  needed, 
and  the  w^ettest  spots  should  have  excess  water  removed 
by  oi)en  V-ty^)e  ditches  or,  in  some  places,  by  tile  drains. 
When  the  soils  are  wet  they  cannot  be  cultivated  and 
should  not  be  "grazed.  Good  grazing  cannot  be  main- 
taine<l  if  animals  are  allowed  to  trample  the  soils  to 
puddle  and  compact  them.  Excluding  aninuils  when  the 
soils  are  wet  allows  rest  periods  for  the  pastures  and 
helps  considerably  in  maintaining  good  grazing  at  otlier 
times. 

Weeds  and  some  sedges  are  connnon  invaders  of  ])as- 
tures  on  these  soils.  They  should  be  kept  nnder  control 
by  mowing  at  proper  times. 

CAPABILITY  UNIT  IIw-7 

In  this  unit  are  nearly  level  to  sloping,  somewhat 
poorly  drained  to  moderately  well  drained  soils  of  flood 
plains  and  some  upland  depressions.  The  soils  of  this 
unit  are — 

Chewacla  gravelly  sandy  loam. 

Chewacla  silt  loam. 

Largent  silt  loam. 

Lindside  silt  loam. 

Lindside  silt  loam,  local  alluvium. 

Philo  gravelly  sandy  loam. 

Pliilo  silt  loam. 

Warners  loam,  0  to  8  percent  slopes. 

These  soils  are  present  in  all  parts  of  the  county.  They 
occupy  about  6,800  acres,  or  2.3  percent  of  the  county. 

These  soils  are  grouped  in  this  capability  imit  because 
they  have  some  hazard  of  flooding,  or  because  they  have 
some  impeded  drainage  and  some  water-control  problems, 
even  if  they  are  seldom  or  never  flooded. 

The  soils  are  somewhat  more  productive  and  can  be 
managed  more  easily  than  most  poorly  drained  soils, 
but  they  are  less  productive  and  less  easy  to  manage  than 
the  well-drained  soils  of  the  flood  plains. 

The  greater  part  of  the  acreage  of  these  soils  has  been 
cleared,  but  many  small  areas  are  still  in  forest.  These 
soils  are  suitable  for  crops  after  the  drainage  is  im- 
proved. Some  corn  is  grown,  but  it  generally  has  to  be 
planted  late  because  the  soil  is  too  wet  at  normal  plant- 
ing time.  Considerable  hay  is  grown,  but  the  most  exten- 
sive use  is  for  pasture. 

Although  management  is  much  the  same  on  all  these 
soils,  there  may  be  considerable  difi^erences  among  the 
soils  in  response  to  management  as  measured  by  produc- 
tion. The  soils  of  the  Lindside  and  Warners  series  are, 
on  the  average,  more  productive  than  the  soils  of  the 
Chewacla,  Largent,  and  Philo  series.  The  Warners  loam, 
which  is  dark  colored  because  of  organic  matter  and  con- 
tains free  lime,  is  probably  the  most  productive  of  all 
these  soils  under  intensive  management. 

Internal  drainage  can  be  improved  by  use  of  open 
ditches  or  tile  lines  at  the  proper  intei-vals  and  depth, 
by  bedding,  and  by  diversion  of  runoff. 


CAl'Al'.lLn  y  UNIT  lis  1 

This  unit  consists  of  nearly  level,  dee]j,  well-drained, 
fine-textured  soils  that  are  underlain  by  limestone.  The 
soils  have  little  or  no  erosion  hazard,  but  the  fine  texture 
of  the  surface  layer  makes  them  dillicult  to  manage  and 
cultivate.  The  soils  of  this  unit  are — 

Bencvola  clay  loam,  0  to  3  percent  slopes. 
Ilagerstown  clay  loam,  0  to  3  percent  slopes. 

Small  areas  of  these  soils  are  in  the  limestone  valley. 
They  amount  to  only  about  300  acres,  or  one-tenth  of  1  per- 
cent of  the  county. 

These  soils  are  much  like  those  of  capability  unit 
IIe-19,  except  (hat  they  are  practically  level  and  show 
little  or  no  effect  of  erosion.  Partly  because  they  are  so 
nearly  level,  these  soils  remain  Avet  later  in  spring  than 
most  well-drained  soils.  The  fme  texture  and  sticky  con- 
sistence also  tend  to  reduce  percolation  and  keep  them 
wet  imtil  the  water  dries  out.  Erosion  is  not  a  hazard 
of  any  importance. 

Because  the  soils  are  fine  textured  and  sticky,  they  can 
be  plowed  and  cultivated  only  within  a  very  narrow 
i-ange  of  moisture  content.  When  too  dry,  they  are  hard, 
and,  when  too  wet,  they  puddle  and  clod  very  easily. 
The  structure  and  consistence  can  be  improved  somewhat 
by  keeping  the  soils  in  sod  crops  much  of  the  time,  by 
growing  few  crops  that  need  clean  cultivation,  and  by 
turning  under  large  amounts  of  oi-ganic  matter  from 
cover  crops,  crop  residue,  and  animal  manure. 

CAPABILITY  UNIT  IIs-2 

In  this  unit  are  neai'ly  level  to  sloping,  sandy  and 
gravelly  soils  of  the  terraces  and  valley  slopes  that  have 
some  hazard  of  erosion  when  they  are  cultivated.  The 
most  important  characteristic  of  the  soils  for  manage- 
ment, however,  is  that  they  are  more  or  less  open  and 
porous  and  do  not  hold  moisture  well.  The  soils  of  this 
unit  are — 

Holston  gravelly  sandy  loam,  3  to  8  percent  slopes. 
Murrill  gravelly  sandy  loam,  0  to  8  percent  slopes. 
Pope  gravelly  sandy  loam. 

Waynesboro  gravelly  sandy  loam,  0  to  8  percent  slopes. 

These  soils  occur  in  small,  scattered  areas.  There  are 
only  1,050  acres,  a  little  less  than  four-tenths  of  1  per- 
cent of  the  county. 

These  soils  are  sandy  and  gravelly  enough  so  that  crops 
on  them  are  limited  by  the  supply  of  moisture  during 
drought.  There  is  no  drainage  problem.  The  sandy  Pope 
soil  is  slightly  droughty  and  is  further  limited  by  a  slight 
risk  of  flooding. 

The  soils  of  this  capability  unit  are  suitable  for  all 
the  common  crops,  but,  because  they  are  rather  low  in 
natural  fertility  and  in  moisture  capacity,  special  fer- 
tilizing and  moisture-conserving  practices  are  needed. 
Little  alfalfa  is  grown,  probably  because  of  the  risk  of 
drought. 

Heavy  applications  of  fertilizer  are  needed  for  most 
crops.  The  soils  are  acid  and  need  lime,  but,  because 
they  are  sandy,  there  is  some  danger  of  overliming.  Lim- 
ing should,  therefore,  be  done  only  after  a  soil  test.  On 
these  and  other  sandy  soils,  ground  limestone  is  likely 
to  be  as  good  as  or  even  better  than  burned  or  hydrated 
lime,  and,  if  it  is  applied,  there  is  little  danger  of  over- 
liming. 


70 


SOIL  SURVEY  SERIES   1959,  NO.  17 


If  the  surface  is  kept  covered  by  vegetation  most  of 
the  time,  there  is  little  danger  of  erosion.  Crops  on  these 
soils  generally  respond  to  irrigation;  some  orchards  are 
being  irrigated.  Sprinkler  irrigation  is  the  only  suitable 
type. 

CAPABILITY  UNIT  IIs-7 

This  unit  consists  of  nearly  level  to  sloping,  well- 
drained  soils  that  are  moderately  deep  over  shale.  Al- 
though there  is  some  hazard  of  erosion,  the  most  signifi- 
cant management  problem  is  the  maintenance  of  moisture 
and  fertility  because  tlie  soils  are  thin  and  some\Alial 
droughty.  The  soils  of  this  unit  are — 

Berks  oliaiinery  loam,  ridges,  0  to  10  percent  slopes,  moderately 
eroded. 

Berks  silt  loam,  ridges,  0  to  10  percent  slopes,  moderately 
eroded. 

Calvin-Berks  channery  loam,  0  to  10  percent  slopes,  moderately 
eroded. 

These  soils  occur  in  the  western  pai't  of  the  county  and 
in  areas  more  or  less  bordering  Conocheague  Creek. 
There  are  about  6,600  acres,  which  is  2.2  percent  of  the 
county. 

These  soils  are  limited  by  droughtiness  and  fertility 
problems  because  they  are  shallow  over  bedrock.  There 
is  not  enough  space  in  the  soil  above  the  bedi'ock  to 
store  large  amounts  of  either  available  moisture  or  plant 
nutrients.  There  is  also  some  risk  of  erosion. 

Fertilizer  is  needed  for  the  full  production  of  crops. 
The  soils  will  retain  nutrients  and  moisture  in  larger 
amounts  if  organic  matter  is  added  to  the  plow  layer. 
This  can  be  green-manure  crops  (particularly  legamies), 
crop  residue,  such  as  stubble  and  cornstalks,  and  animal 
manure.  Irrigation  is  desirable  for  some  crops  if  water 
is  available  and  if  irrigation  is  economically  feasible. 

These  soils  are  used  for  general  farming  and  are  par- 
ticularly well  suited  to  orchards  wherever  air  drainage 
is  adequate.  Sod  cover,  especially  if  the  seeding  mixture 
contains  legumes,  helps  to  control  runoff  and  to  hold 
plant  nutrients. 

CAPABILITY  UNIT  IIIe-1 

In  this  unit  are  deep,  well-drained,  sloping  or  rolling, 
friable  soils  that  have  been  developed  over,  or  strongly 
influenced  by,  limestone.  Erosion  has  been  active,  but 
the  soils  hold  moisture  and  plant  nutrients  well  and  are 
fertile  and  productive.  The  soils  of  this  unit  are — 

Duffield  silt  loam,  8  to  15  i)ercent  slopes,  moderately  eroded. 
Dunmore  cherty  silt  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

Etowah  gravelly  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

Etowah  silt  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Frankstown  and  Duffield  channery  silt  loams,  8  to  15  percent 

slopes,  moderately  eroded. 
Hagerstown  silt  loam,  8  to  15  percent  slopes,  moderately 

eroded. 

Hagerstown  silty  clay  loam.  8  to  15  percent  slopes,  moderately 
eroded. 

Westmoreland  channery  silt  loam,  10  to  20  percent  slopes, 
moderately  eroded. 

These  soils  occur  throughout  the  limestone  valley  and 
in  scattered  areas  in  the  western  part  of  the  county.  There 
are  about  13,100  acres,  or  4.4  percent  of  the  county. 

The  soils  of  this  capability  unit  resemble,  in  many  ways, 
those  of  capability  units  I-l  and  IIe-1,  but  they  are 
steeper  and  need  more  careful  management  to  control 


erosion.  Many  of  the  areas  are  small,  and  they  lie  within 
fields  of  more  moderate  topography.  They  tend  to  be 
farmed  with  the  same  rotation  and  management  that  are 
employed  on  more  gently  sloping  soils.  The  soils  of  this 
capability  unit,  however,  neecl  longer  rotations  with  fewer 
years  in  clean-tilled  crops ;  they  need  contour  farming  in 
narrower  strips;  and  they  need  more  careful  disposal  of 
water  than  the  soils  of  capability  imits  I-l  and  IIe-1. 

The  principal  crops  on  these  soils  are  corn,  small  grains, 
hay,  and  pasture;  few  areas  remain  in  woodland.  The 
3-year  rotation  that  is  used  on  the  more  gently  sloping 
soils  is  not  protective  enough  to  control  erosion.  Corn 
and  a  small  grain  followed  by  oidy  1  year  of  hay  leaves  the 
soil  exposed  too  much  of  the  time.  A  4-year  or  5-year 
rotation  consisting  of  corn,  a  small  grain,  and  2  or  3  years 
of  hay,  is  much  more  suitable.  If  hay,  especially  alfalfa, 
can  be  grown  for  4  or  more  years  after  corn  and  small 
grain,  or  after  corn,  the  degree  of  soil  protection  is  still 
better. 

Strips  for  the  rotation  of  crops  should  be  narrow  and 
carefully  laid  out  on  the  contour  or  on  a  slight  grade. 
Disposal  of  water  needs  to  be  more  carefully  done  than 
on  similar  soils  of  lesser  slopes.  Drainageways  must  be 
more  carefully  and  heavily  sodded,  must  receive  more 
careful  and  frequent  maintenance,  and  must  have  more 
durable  and  safer  outlets.  As  with  all  soils,  fertility  and 
good  tilth  must  be  maintained  by  proper  fertilization  and 
cultivation  and  other  management  practices. 

The  soils  of  capability  unit  IIIe-1  are  good  soils,  and 
under  good  management  they  are,  and  will  remain,  pro- 
ductive. Average  yields  are  somewhat  less  than  on  soils 
of  capability  units  I-l  and  IIe-1  but  are  better  than 
on  most  of  the  other  capability  units  of  class  III. 

CAPABILITY  UNIT  IIIe-4 

This  unit  consists  of  deep,  well-drained,  sloping  or 
somewhat  rolling  soils  that  have  not  been  significantly 
influenced  by  limestone.  The  soils  are  like  those  of  capa- 
bility units  1-4  and  IIe-4,  but  they  are  more  sloping 
and,  hence,  their  use  is  more  strongly  limited  by  the 
hazard  of  erosion.  The  soils  of  this  unit  are — 

Braddock  and  Thurmont  gravelly  loams,  8  to  15  percent  slopes, 

moderately  eroded. 
Edgemont  and  Laidig  channery  loams,  5  to  20  percent  slopes, 

moderately  eroded. 
Fauquier  channery  loam,  10  to  20  percent  slopes,  moderately 

eroded. 

Fauquier  silt  loam,  10  to  20  percent  slopes,  moderately  eroded. 
Highfield  gravelly  loam,  10  to  20  percent  slopes,  moderately 
eroded. 

Holston  gravelly  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

Holston  silt  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Laidig  gravelly  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Murrill  gravelly  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

Murrill  silt  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Myersville  channery  loam,  10  to  20  percent  slopes,  moderately 
eroded. 

Myersville  silt  loam,  10  to  20  percent  slopes,  moderately 
eroded. 

Thurmont  gravelly  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

Wayne.sboro  gravelly  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

These  soils  are  chiefly  on  uplands  and  terraces  through- 
out the  county,  except  in  the  limestone  valley.  Some  of 
them  lie  along  the  fringes  of  the  valley.  They  are  ex- 


WASHINGTON  COUNTY,  MAHYLAND 


71 


tensive  and  occupy  about  10,450  acres,  or  5.6  percent  of 
the  county.  These  soils  are  similar,  except  for  stronger 
slopes,  to  the  soils  of  capability  units  1-4  and  ]le^,  but 
they  need  nioi-e  careful  management  and  protection. 

Many  areas  of  tliese  soils  :ire  small,  luid  many  of  tliem 
join  the  similar,  but  more  o-enlly  sloping,  soils.  Man^ 
fields,  however,  consist  almost  entirely  of  these  soils.  The 
slopes  tend  to  be  somewhat  longer  in  Pleasant  Valley, 
for  instance,  than  in  the  limestone  valley. 

Because  of  the  slope  and  the  risk  of  erosion,  rotations 
need  to  be  longer  and  water  disposal  needs  to  be  done 
with  more  care  than  on  soils  of  capability  unit  Ile^. 
More  of  the  land  should  be  in  hay  or  pasture.  The  kinds 
of  crops  are  the  same  as  those  suited  to  soils  of  capability 
unit  IIe-4.  There  are  large  areas  of  orchards. 

The  usual  3-year  rotation  is  followed  by  many  farmers, 
but  it  is  not  likely  to  protect  and  maintain  the  soil  well 
enough.  A  rotation  that  is  5  years  in  length  is  preferred 
for  the  soils  in  this  capability  unit.  A  4-year  rotation, 
with  2  years  of  hay,  would  be  better  than  the  simple  3-year 
rotation.  More  land  should  be  in  grass-clover  pasture. 
Hay  sod  can  also  be  used  for  pasture  in  part  of  the  rota- 
tion. In  some  way  there  should  be  a  decrease  in  the  rota- 
tion cj'cle  of  the  time  the  soil  is  exposed  to  erosion.  If 
these  soils  are  not  protected  better  than  they  have  been, 
they  will  eventually  lose  much  of  their  productiveness. 
Already  some  areas,  once  in  capability  unit  IIIe-4,  are 
now  in  capability  units  IVe-3,  VIe-2,  or  even  VIIe-2, 
because  they  were  damaged  by  erosion. 

Yields  are  fairly  good,  but  these  soils  will  need  better 
management  than  they  have  received  in  the  past  if  their 
productivity  is  to  be  increased  or  even  maintained. 

CAPABILITY  UNIT  IIIe-5 

This  unit  consists  of  somewhat  droughty,  gently  slop- 
ing to  strongly  sloping,  gravelly  and  sandy  soils.  The 
soils  are  rather  severely  limited  by  the  hazard  of  erosion 
when  they  are  cultivated.  The  soils  of  this  unit  are — 

Holston  gravelly  sandy  loam,  3  to  15  percent  slopes,  moderately 
eroded. 

Murrill  gravelly  sandy  loam,  3  to  15  percent  slopes,  moderately 
eroded. 

Waynesboro  gravelly  sandy  loam,  3  to  15  percent  slopes, 
moderately  eroded. 

These  soils  occur  in  many  parts  of  the  county  outside 
of  the  limestone  valley.  They  occupy  about  1,700  acres, 
or  six-tenths  of  1  percent  of  the  county. 

These  soils,  in  many  ways,  are  like  those  in  capability 
unit  IIs-2,  but  they  are  more  strongly  sloping  and  have 
been  moderately  eroded.  The  soils  are  sandy  and  tend 
to  be  droughty.  The  risk  of  additional  erosion,  however, 
is  the  hazard  that  dominates  their  capability  classification. 
The  subsoil  is  generally  finer  textured  than  the  surface 
layer,  although  both  are  sandy  and  gravelly.  Fertility  is 
rather  low,  and  the  soils  tend  to  dry  out  more  quickly 
than  do  the  finer  textured  soils. 

The  usual  farm  crops  are  grown  on  these  soils.  Some 
areas  are  used  for  orchards.  The  soils  need  fertility  im- 
provement, water  conservation,  and,  of  course,  control 
of  erosion.  The  cropping  system  may  include  a  small 
grain,  but  it  does  not  need  to  do  so ;  corn  1  year  and  hay 
2  to  4  years  is  a  fairly  common  rotation.  Early  vegetable 
crops  should  do  well  because  the  soils  are  well  aerated  and 
easily  worked.    Without  irrigation,  the  vegetable  croj) 


should  be  one  (hat  will  be  harvested  before  the  summer 
drouglit  sets  in.  With  supplemental  irrigation,  a  longer 
growing  season  is  possible.  Fertilizer  is  gniatly  needed, 
and  lime  should  be  used  judiciously.  Jnfoi'mation  al^iut 
the  kind  and  amount  of  fertilizer  and  lime  the  soil  needs 
can  be  obtained  from  testing  the  soil,  a  service  that  is 
available  through  the  county  agent's  ollice. 

CAPABILITY  UNIT  IIIe-G 

This  unit  consists  of  only  one  soil — Terrace  escarp- 
ments. This  soil  is  on  well-drained  terraces  and  bottom 
lands  that  have  short,  irregular,  and,  in  some  places, 
steep  slopes  that  are  subject  to  serious  erosion  if  they 
are  not  protected.  Some  areas  are  subject  to  occasional 
flooding. 

Small  areas  of  this  soil  are  in  narrow  strips  through- 
out the  county  wherever  there  are  flood  plains  and  ter- 
races. These  narrow  strips  are  on  the  sides  of  draws 
or  in  small  ravines  that  cut  through  terraces  or  flood 
plains;  on  short,  sharp  slopes  between  one  level  of  a 
flood  plain  and  another;  or  on  fringes  of  terraces  and 
flood  plains  where  they  adjoin  steep  uplands.  The  total 
area  of  this  land  is  about  350  acres,  or  a  little  more  than 
one-tenth  of  1  percent  of  the  county. 

The  cropping  system  used  on  this  soil  should  be  much 
the  same  as  for  soils  of  capability  unit  1-6,  except  that 
a  crop  rotation  should  contain  more  years  in  hay,  pasture 
plants,  or  other  close  vegetative  cover.  The  steepest  areas 
should  be  in  close-growing  vegetation  a  great  deal  of  the 
time.  Such  areas  are  particularly  well  suited  to  jierma- 
nent  meadow  strips,  even  on  bottom  lands  where  most  of 
the  adjoining  soils  are  in  corn  or  some  other  crop.  Careful 
protection  of  these  areas  will  help  protect  the  soils  on 
adjacent  bottom  lands. 

CAPABILITY  UNIT  IIIe-10 

In  this  unit  are  sloping  to  strongly  sloping,  well-drained 
soils  that  are  moderately  deep  over  acid  shale  or  mica 
schist  and  that  have  been  moderately  eroded.  The  soils 
of  this  unit  are — 

Calvin  channery  loam,  10  to  20  percent  slopes,  moderately 
eroded. 

Talladega  gravelly  silt  loam,  thick  solum  variant,  0  to  20 
percent  slopes,  moderately  eroded. 

These  soils  occur  in  the  extreme  eastern  and  extreme 
western  parts  of  the  county,  but  not  in  the  limestone 
valley.  They  occupy  about  2,900  acres,  or  1  percent  of  the 
county. 

The  soils  of  this  capability  unit  are  similar  to  those  of 
capability  unit  IIe-10,  but  they  are  steeper.  Both  ha^-e 
been  moderately  eroded.  These  soils  are  somewhat 
droughty.  Their  moisture-supplying  capacity  is  low  or 
moderate,  and  the  growth  of  crops  is  hindered  during 
long  dry  ])eriods. 

The  soils  are  used  for  most  of  the  common  crops  grown 
in  the  county.  They  are  generally  not  good  for  alfalfa, 
because  of  their  shallow  depth,  low  fertility,  and  strong 
acidity.  '\^nTLerever  they  have  adequate  air  drainage,  they 
appear  to  be  fairly  well  suited  to  tree  and  berry  fruits. 

A  crop  rotation  needs  to  be  longer  on  these  soils,  with 
more  years  of  hay  or  other  close-growing  crops,  than  on 
the  soils  of  capability  unit  IIe-10.  Soil-conserving 
measures  are  needed,  and  pastures  should  be  well  man- 
aged and  not  overgrazed.  The  4-year  and  5-year  rota- 


599553—62  C 


72 


SOIL  SURVEY  SERIES    19  59,  NO.  17 


tions  that  contain  extra  years  of  hay  will  be  much 
more  ell'ective  than  the  common  3-ycar  rotation  of  corn, 
grain,  and  hay.  If  these  soils  are  ])ro])er]y  limed  and 
fertilized,  fairly  good  clover,  mixed  hay,  and  pasture 
can  be  grown.  Even  with  tlie  best  cropping  systems  and 
management,  however,  these  soils  are  not  highly  produc- 
tive. Yields  can  be  increased  greatly  with  good  manage- 
ment, but  farmers  should  not  expect  yields  tliat  are  ob- 
tainable on  some  of  the  better  soils. 

Tillage  and  farming  operations  sliould  be  on  the  con- 
tour, with  fairly  narrow  strips  of  a  row  crop  or  grain. 
AVater-conserving  terraces  can  be  built  in  some  phxces. 
As  much  of  the  runolF  as  possible  should  be  spread  on 
meadow  strips,  so  that  most  of  the  moisture  can  get 
back  into  the  soil.  Some  runoff  is  probably  unavoidable, 
and  this  should  be  channeled  through  well-protected 
drains  and  outlets. 

Green-manure  crops  and  cover  crops  are  especially 
valuable  on  soils  of  tliis  capability  unit.  They  will  help 
to  maintain  or  increase  fertility.  Animal  manure  and 
ci'op  residue  are  also  needed.  Pastures  should  be  well 
established  l)efore  they  are  grazed,  and  grazing  should 
be  regulated  and  not  overdone.  Control  of  weeds  is 
especially  important  in  pastures.  As  a  rule,  weeds  can 
be  controlled  by  seasonal  mowing. 

CAPABILITY  UNIT  IIIe-13 

This  capability  unit  consists  of  eroded,  sloping  or 
strongly  sloping  soils  that  have  a  tight  subsoil  that 
restricts  drainage.  Surface  drainage  is  rapid,  but  inter- 
nally the  soils  are  only  moderately  well  drained.  The 
soils  of  this  miit  are — 

Buchanan  gravelly  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

Landisburg  cherty  silt  loam,  8  to  25  percent  slopes,  moderately 
eroded. 

Monongabela  gravelly  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

Monongabela  silt  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

Trego  gravelly  silt  loam,  3  to  15  percent  slopes,  moderately 
eroded. 

These  soils  are  in  all  parts  of  the  county,  except  the 
limestone  valley.  They  commonly  occur  in  small,  scat- 
tered areas.  The  total  area  is  about  1,300  acres,  or  four- 
tenths  of  1  percent  of  the  county. 

These  soils  ai^e  limited  by  the  hazard  of  erosion  and  by 
wetness  that  is  caused  by  impeded  drainage.  They  are 
not  particularly  fertile,  so  neither  present  nor  poten- 
tial production  is  very  high.  The  soils  are  suitable  for 
cultivation,  but  they  are  used  more  for  pasture  or  for 
mixed  hay  than  for  tilled  crops.  Some  corn  is  grown, 
but  little  small  grain.  Alfalfa  is  not  well  suited  and 
tends  to  heave  in  winter  and  spring.  These  soils  are 
not  well  suited  to  vegetable  crops  or  orchards.  Most 
areas  of  these  soils,  in  the  agricultural  parts  of  the 
county,  are  used  for  pasture  and  meadow.  In  the  moun- 
tainous areas,  they  are  mostlv^  still  in  forest.  None  of 
the  soils  is  in  the  major  valleys  of  the  county. 

The  soils  of  this  capability  unit  are  intermediate  in 
many  of  their  characteristics.  They  are  neither  well 
drained  nor  poorly  drained  and  neither  level  nor  very 
steep.  They  are  seldom  free  of  the  risk  of  erosion,  but 
few  of  the  areas  have  been  severely  eroded.  Some  of  the 
soils  are  rather  low  in  fertility,  and  none  are  highly 


fertile.  Therefore,  they  need  several  kinds  of  manage- 
ment, in  some  degree,  at  the  same  time. 

Among  their  requirements,  and  perhaps  (he  one  of 
most  import  ance,  is  tlie  pre\  ('iit  ion  of  t'ni-t  hcr  losses  of 
soil.  Control  of  erosion  and  imi)rovement  of  drainage 
can  well  go  together.  Kimoll  from  adjacent  higher  areas 
should  be  intercepted  and  diverted  around  these  soils  if 
feasible.  Otherwise,  runoff  should  be  conducted  in  strong- 
ly sodded  waterways  through  the  areas.  Certain  very 
Avet  spots  can  be  partially  drained  by  V-type  ditches  that 
dischai'ge  into  the  main  drains.  Tile  drains  are  not 
usually  recommended,  because  most  of  the  soil  areas  are 
not  deep  enough  over  the  tight  subsoil  for  tile  to  work 
effectively.  Contour  tillage  and,  in  some  places,  strip- 
cropping  can  be  used  on  the  strongly  sloping  areas  to  help 
control  runoff. 

These  soils  should  be  plowed  and  tilled  only  at  long 
intervals;  generally,  the  less  they  are  disturbed  the  better. 
No  machinery  should  be  used  on  them,  and  no  gi-azing 
shoidd  be  allowed  when  the  surface  layer  is  saturated  with 
water.  This  would  puddle  and  compact  the  soil  and 
make  it  more  difTicult  to  drain  and  manage.  Neither  hay 
crops  nor  pasture  will  be  produced  economically  or  in 
adequate  amounts  without  attention  to  soil  fertility. 
Unless  these  soils  are  properly  managed  and  conserved, 
they  will  deteriorate  progressively  until  they  are  of  little 
use  for  any  purpose. 

CAPABILITY  UNIT  IIIe-26 

The  soils  of  this  capability  unit  are  sloping  to  fairly 
steep  and  are  rather  severely  limited  by  the  hazard  of 
erosion.  They  contain  pieces  of  chert  and  are  underlain 
by  cherty  limestone.  There  ai"e  only  two  soils  in  this 
unit^ — 

EUiber  cberty  loam,  12  to  25  percent  slopes,  moderately  eroded. 
Frederick  cherty  silt  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

These  soils  are  on  the  sides  of  ridges  in  the  western  part 
of  the  county.  They  amount  to  about  1,400  acres,  or 
nearly  one-half  of  1  percent  of  the  county. 

The  soils  of  this  capability  unit  are  like  those  of  capa- 
bility unit  IIe-26,  but  they  are  more  strongly  sloping 
and  their  erosion  hazard  is  more  severe.  Some  areas 
are  still  in  forest  and  some  are  used  for  general  farming, 
but  their  most  important  use  is  for  orchards.  The  soils 
are  deep,  readily  permeable,  and  have  a  fairly  high 
moisture  capacity.  They  are  not  so  readily  erodible  as 
many  soils  that  have  similar  slopes.  Air  drainage  on  most 
of  them  is  very  good. 

For  general  crops,  long  rotations  should  be  used  and 
the  crops  grown  in  contour  strips.  Orchards  should  also 
be  planted  on  the  contour,  and  thei'e  should  be  a  well-kept 
ground  cover  between  trees.  Although  the  fertility  may 
be  at  least  moderately  good,  special  attention  should  be 
given  to  the  potash  level  in  orchards  and  to  the  phosphate 
level  for  all  crops. 

JNIuch  of  the  rainfall  probably  will  be  absorbed  by  these 
soils.  Runoff  must  be  disposed  of  carefully  to  prevent 
erosion.  Many  cultivated  areas  have  a  blanket  of  chert 
fragments  on  the  surface,  which  gives  some  protection  to 
the  soil.  Close-growing  vegetation  will  augment  the 
protection  against  erosion.  This  combination,  together 
with  contour  farming,  should  provide  adequate  control 
of  runoff  and  erosion. 


WASHINGTON  COUNTY,  MARYLAND 


CAPABILITY  UNIT  IIIe-30 

This  capability  unit  consists  of  sliallow  to  (loop,  lioavy- 
texturod,  -well-drained,  gently  to  niodoratcly  sloping;  soils 
that  are  underlain  by  limestone.  The  soils  have  a  fine- 
textured  surface  layer  that  is  thin  or  very  thin  because 
of  erosion.  Plowing  to  a  normal  depth  turns  up  part 
of  the  heavy,  intractable  subsoil,  which  tends  to  become 
puddled  an(l  cloddy.  Tiie  (inc-lexturod  surface  layer  and 
the  severe  hazard  of  erosion  make  these  soils  difficult 
to  manage.  The  soils  of  this  unit  are — 

Benevola  clay  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Corydon  clay  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Frankstown  and  DnfReld  channery  silt  loams,  0  to  8  percent 

slopes,  severely  eroded. 
Hagerstown  clay  loam,  3  to  8  percent  .slopes,  severely  eroded. 
Hagerstown  clay  loam,  8  to  15  percent  slopes,  moderately 

eroded. 

These  soils  ai-e  in  spots  throughout  the  limestone  valley. 
There  are  oidy  1,400  acres,  which  is  less  than  half  of  1 
percent  of  the  county. 

The  soils  of  this  capability  unit  are  like  those  of  capa- 
bility units  IIs-1  and  IIe-19,  except  that  they  are  more 
strongly  sloping  and  some  are  severely  eroded.  They 
are  finer  textured  than  the  soils  of  ca2:)ability  unit  IIIe-1. 
Because  of  the  slope,  even  where  there  has  been  only 
moderate  erosion,  the  surface  layer  in  most  places  is  rather 
thin.  "Wlien  the  soil  is  plowed,  some  of  the  finer  textured 
subsoil  is  almost  alwaj'S  mixed  with  the  clay  loam  or 
silt  loam  surface  layer. 

Because  of  their  texture,  these  soils  are  more  difficult 
to  plow  and  to  manage  than  are  those  of  capability 
unit  IIIe-1.  The  soils  become  puddled  and  clod  easily, 
and  a  good  seedbed  is  difficult  to  prepare.  These  soils 
should  receive  lai'ge  amounts  of  organic  matter,  either 
as  animal  manure  or  as  plant  residues.  This  will  help 
prevent  puddling  and  the  formation  of  clods  and  will  make 
the  soil  more  easily  workable  over  a  somewhat  wider  range 
of  moisture  content. 

Except  for  the  differences  because  of  texture  of  the 
surface  layer,  the  soils  of  this  capability  unit  can  be  used 
and  managed  much  the  same  as  those  of  capability  unit 
IIIe-1.  Whenever  sod  crops  can  be  grown  in  preference 
to  clean-tilled  crops,  the  chances  of  maintaining  good 
tilth  will  be  improved. 

CAPABILITY  UNIT  IIIe-31 

This  capability  unit  consists  of  sloping  to  strongly 
sloping,  somewhat  excessively  drained  soils  that  are 
shallow  to  rnoderately  deep  over  shale  or  sandstone 
materials,  which  have  been  somewhat  influenced  by  lime. 
The  soils  are  like  those  of  capability  unit  Ile-il,  but 
they  are  more  strongly  sloping  and  have  a  more  severe 
hazard  of  ei-osion.    The  soils  of  this  unit  are — 

Litz  channery  loam,  10  to  20  percent  slopes,  moderately  eroded. 
Litz  shaly  loam,  0  to  10  percent  slopes. 
Litz  shaly  loam,  3  to  10  percent  slopes,  moderately  eroded. 
Litz-Teas  channery  silt  loams,  3  to  15  percent  slopes,  moder- 
ately eroded. 

These  soils  are  in  the  western  part  of  the  county  and 
on  some  of  the  ridges  within  the  limestone  valley.  They 
amount  to  about  2,200  acres,  a  little  less  than  eight-tenths 
of  1  percent  of  the  county. 

The  soils  of  capability  unit  IIIe-31  contain  many  flat 
fragments  of  sandstone  or  large  fragments  of  shale,  even 


in  the  surface  layer.  The  fragments  are  especially  numer- 
ous where  the  soils  have  been  plowed  and  the  thin,  natural 
surface  layer  has  been  mixed  with  tlie  more  channery 
subsoil. 

These  soils  are  used  for  general  farming  and,  to  some 
extent,  for  orchards.  Fairly  large  areas  are  still  in 
forest.  Although  these  soils  are  sliallow  and  droughty, 
they  are  fairly  fertile  and  productive.  Erosion  is  prob- 
ably more  of  a  hazard  than  droughtiness.  The  soil  should 
be  managed  in  long  rotations  that  include  cover  crops 
most  of  the  time.  Farming  sliould  be  on  the  contour.  The 
soils  are  readily  permeable  to  water,  but  their  capacity 
for  holding  water  is  low.  Co)ise(iuoiitly,  there  is  usually 
considerable  runoff  during  and  after  heavy  rains.  Rills 
develop  readily,  and,  unless  checked,  will  enlarge  into 
gullies.  Diversion  terraces  and  heavily  sodded  waterways 
are  needed  to  control  runoff. 

Supplemental  irrigation,  where  it  can  be  done,  would 
benefit  the  crops  on  these  soils.  Some  irrigation  is  done 
in  orchards  on  Litz  soils  in  the  Hancock  area.  Irrigation 
would  have  to  be  of  the  sprinkler  type,  and  the  water 
should  be  applied  with  great  care.  Water  is  not  readily 
available  for  many  of  the  areas  of  these  soils. 

CAPABILITY  UNIT  IIIe-32 

This  capability  unit  consists  of  sloping  to  strongly 
sloping,  well-drained  soils  that  are  moderately  deep  over 
acid  shale  or  sandstone  and  have  a  severe  hazard  of 
erosion.  The  soils  are  like  those  of  capability  unit  IIs-7, 
except  that  the  hazard  of  erosion  is  more  of  a  management 
problem  than  is  droughtiness  or  low  fertility.  The  soils 
of  this  unit  are — 

Berks  channery  loam,  ridges,  10  to  20  percent  slopes, 

moderately  eroded. 
Berks  silt  loam,  ridges,  10  to  20  percent  slopes,  moderately 

eroded. 

Calvin-Berks  channery  loams,  10  to  20  percent  slopes, 
moderately  eroded. 

These  soils  are  mostly  in  the  far  western  part  of  the 
comity,  but  some  are  in  the  vicinity  of  Conococheague 
Creek.  They  amount  to  about  6,200  acres,  or  2.1  percent 
of  the  county. 

These  soils  are  similar  to  the  soils  of  capability  unit 
IIIe-31,  but,  because  there  has  been  no  influence  of  lime 
they  are  somewhat  le.ss  fertile  and  productive,  even  though 
in  most  areas  the  soil  is  a  little  deeper  over  the  bedrock. 

Although  large  areas  are  still  in  forest,  some  of  the 
acreage  is  used  for  general  farming  and  some  for 
oi'chards.  Practices  to  combat  erosion  and  droughtiness 
should  be  essentially  the  same  as  for  capability  unit 
IIIe-31,  but  more  careful  attention  is  needed  for  the 
maintenance  and  improvement  of  fertilit}-.  Fertilizer 
is  needed  in  large  amounts  for  most  crops.  Additions 
of  organic  material  are  especially  helpful.  The  soils 
should  be  limed  and  fertilized,  as  indicated  by  soil  tests. 
These  soils  cainiot  be  made  highly  productive,  but  good 
management  will  produce  fairly  good  returns  from  them. 

CAPABILITY  UNIT  IIIe-44 

This  capability  mut  consists  of  deep,  well-drained, 
moderately  sloping,  severely  eroded  soils.  In  spite  of 
the  severe  erosion  that  has  occurred,  there  is  still  a  great 
enough  depth  of  soil  for  man}^  crops,  particularly  deep- 
rooted  crops  that  can  draw  on  the  usually  adequate 


74 


SOIL  SURVEY  SERIES   19  59,  NO.  17 


moisture  supply  in  the  deep  subsoils.  These  soils  have 
not  been  influenced  by  lime.  They  are — 

Myersville  channery  silt  loam,  3  to  10  percent  slopes,  severely 
eroded. 

Waynesboro  gravelly  loam,  3  to  15  percent  slopes,  severely 
eroded. 

These  soils  are  mostly  in  the  Pleasant  Valley  section 
and  on  some  old  terraces  of  the  Potomac  River.  They 
occupy  about  600  acres,  or  two-tenths  of  1  percent  of 
the  county. 

These  soils  became  eroded  when  they  were  not  well  man- 
aged. Ade({uate  erosion  control  measures  should  prevent 
further  deterioration,  and  the  soils  can  be  cultivated 
regularly  if  they  are  managed  propex'ly. 

Intensive  practices  to  check  further  erosion  are  needed. 
Farming  should  be  on  the  contour,  and  special  care 
is  needed  to  dispose  of  excess  water.  Strips  of  crops  should 
be  narrow,  and  not  more  than  one  strip  in  four  should  be 
clean  tilled.  A  hay  crop  should  be  kept  on  the  land  at 
least  2  years,  and  preferably  longer.  Cover  crops  should 
be  grown  and  turned  under  for  green  manure.  Green- 
manure  crops,  along  with  large  amounts  of  animal  manure, 
will  improve  surface  structure  and  tilth,  enable  water  to 
penetrate  more  rapidly,  and  decrease  the  runoff.  The 
surface  layer  Avill  also  be  more  friable  and  easily  tilled. 

CAPABILITY  UNIT  IIIw-1 

This  unit  consists  of  poorly  drained,  silty  soils  of  flood 
plains,  foot  slopes,  terraces,  or  depressions.  They  have 
not  been  influenced  by  lime.   The  soils  of  this  unit  are — 

Atkins  silt  loam. 

Brinkerton  silt  loam,  0  to  8  percent  slopes. 
Rohrersville  silty  clay  loam,  0  to  8  percent  slopes, 

moderately  eroded. 
Tyler  silt  loam,  0  to  8  percent  slopes. 
Wehadkee  silt  loam. 

The  Atkins  and  the  Wehadkee  soils  occur  on  flood 
plains  and  ai-e  subject  to  occasional  or  frequent  flooding. 
The  other  soils  occur  in  lipland  depressions,  on  low  foot 
slopes,  or  on  old  river  terraces,  and  usually  ai-e  not  subject 
to  flooding.  These  soils  are  in  all  parts  of  the  county, 
except  in  the  limestone  areas.  There  are  about  1,900 
acres,  or  nearly  seven-tenths  of  1  percent  of  the  county. 

These  are  some  of  the  wettest  soils  in  the  county.  They 
are  saturated  during  most  of  the  winter  and  spring  and 
f re(|uently  at  other  times  of  the  year  after  hea^y  rains. 

]\Iany  areas  have  been  cleared,  but  in  other  places  there 
are  gi'owths  of  willows,  alders,  birches,  and  other  water- 
tolerant  trees.  The  cleared  areas  are  used  chiefly  for 
grazing.  With  adequate  drainage,  they  can  be  made 
suitable  for  cultivation.  The  Brinkerton  and  Rohrersville 
soils  in  this  unit  have  more  continuing  limitations  after 
drainage  than  the  other  soils.  Under  good  management, 
some  fairly  good  crops  are  produced,  especially  on  the 
Rohrersville  silty  clay  loam.  Hay  crops,  including  some 
soybeans,  and  late  corn  are  the  most  common  crops. 

Drainage  can  be  improved  by  the  use  of  V-type  ditches ; 
tile  is  generally  too  expensive  for  the  returns  that  can  be 
expected.  Diversion  terraces  will  partly  protect  the 
soils  from  runoff.  Danger  of  flooding  can  be  reduced  in 
some  places  by  cleaning  and  straightening  channels  and 
by  deepening  some  of  them.  Cleaned  and  straightened 
banks  should,  of  course,  be  sodded  to  help  protect  them 
from  cutting. 


ITay  and  pasture  are  good  uses  for  these  soils.  Corn 
for  silage  can  also  be  grown.  Prevention  of  overgrazing 
and  trampling  while  the  soils  are  wet  is  an  important 
item  in  their  management.  Pastures  should  be  grazed  only 
when  tlie  surface  layer  is  dry  enough  that  it  will  not  be 
puddled  or  compacted. 

CAPABILITY  UNIT  IIIw-2 

The  only  soil  in  the  county  in  this  capability  unit  is 
Melvin  silt  loam.  It  is  a  poorly  drained  soil  of  the  flood 
plains  and  has  been  strongly  influenced  by  limestone. 
Normally,  it  is  flooded  only  occasionally. 

This  soil  occurs  on  flood  plains  wherever  sediment 
from  limestone  areas  has  been  deposited.  Most  of  the 
areas,  but  not  all,  are  within  the  limestone  valley.  There 
are  about  2,000  acres,  or  seven-tenths  of  1  percent  of  the 
county. 

The  most  common  use  for  this  soil,  without  artificial 
drainage,  is  pasture.  Areas  that  can  be  drained  may  be 
used  for  corn,  hay,  and  pasture.  The  soil  is  of  good 
fertility  and  is  productive  when  properly  managed.  Man- 
agement should  be  much  the  same  as  tliat  of  soils  in 
capability  unit  IIIw-1;  the  yields  and  economic  returns 
should  be  greater. 

CAPABILITY  UNIT  IIIs-2 

The  soils  of  this  unit  are  well  drained  to  excessively 
drained  and  are  very  shallow  or  shallow  over  bedrock 
of  hard  shale  or  mica  schist.  The  Corydon  soil  is  shallow 
over  limestone.  Slopes  are  gentle  to  moderate,  and, 
although  there  is  some  erosion  hazard,  the  thinness, 
di'oughtiness,  and  low  fertility  of  the  soil  are  more  im- 
portant limitations  than  the  risk  of  erosion.  The  soils 
of  this  unit  are — 

Berks  shaly  silt  loam,  0  to  8  percent  slopes. 
Berks  shaly  silt  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Calvin  shaly  loam,  0  to  10  percent  slopes,  moderately  eroded. 
Calvin-Montevallo  shaly  loams,  0  to  10  percent  slopes, 

moderately  eroded. 
Corydon  clay  loam,  0  to  3  percent  slopes. 
Hazel  channery  silt  loam,  0  to  10  percent  slopes,  moderately 

eroded. 

Montevallo  shaly  loam,  0  to  10  percent  slopes,  moderately 
eroded. 

These  soils  occur  in  several  parts  of  the  county.  They 
amount  to  about  5,600  acres,  or  1.9  percent  of  the  county. 

These  soils  are  shallow  and  droughty,  of  low  fertility, 
and  strongly  to  very  strongly  acid.  They  are  suitable  for 
cultivation,  but  very  careful  management  that  includes 
conservation  of  moisture,  improvement  of  fertility,  and 
the  control  of  erosion  are  necessary  for  any  reasonable 
production.  There  is  not  enough  soil  depth  for  deep- 
rooted  crops;  in  places  bedrock  is  within  a  few  inches 
of  the  surface,  and  generally  it  is  within  2  feet  of  the 
surface.  Close-growing  crops  should  be  included  in  the 
rotation  and  clean-tilled  crops  grown  no  more  than  neces- 
sary. Tillage  encourages  erosion,  and  there  is  little  soil 
to  lose.  Hay  crops  and  pasture  protect  the  soil,  but  they 
produce  little  forage  during  the  dry  summer  weather. 
Under  the  best  management,  pasture  produces  fairly  well 
in  spring  and  in  autumn  if  there  is  sufficient  moisture. 

There  are  some  orchards  on  these  soils.  They  can  be 
managed  without  erosion  if  kept  in  sod,  but  production 
probably  will  be  low  in  comparison  to  that  on  the  better 
orchard  soils.  Irrigation  should  be  especially  helpful  for 


WASHINGTON  COUNTY,  MARYLAND 


75 


orchards,  annual  crops,  and  for  pasture,  wherever  (here 
is  water  (hat  can  be  developed  and  used  economically. 

Subsoiling,  or  chiseling,  is  done  on  some  of  these  soils, 
but  not  on  tlio  Corydon  or  Hazel  soils,  which  are  under- 
lain by  very  hard  rock.  A  tractor-drawn  tool  is  used  to 
cut  vertically  into  and  througli  the  soil,  and  as  deep  into 
the  shale  rock  as  the  available  tools  and  power  permit. 
The  depth  of  penetration  may  average  as  much  as  2  feet, 
but  in  some  areas  it  is  less.  The  shattered  shale  permits 
some  surface  soil,  organic  matter,  nutrients,  and  especially 
water  to  penetrate  more  readily  than  before.  The  root 
zone  is  thus  deepened ;  the  amount  of  water  and  nutrients 
available  for  plants  is  increased;  and  the  amount  of  run- 
oft'  and  erosion  are  I'educed. 

CAPABILITY  UNIT  IVe-1 

This  capability  imit  consists  of  moderately  deep  and 
deep,  rolling  to  hilly,  well-drained  soils  that  are  under- 
lain by,  or  were  strongly  influenced  by,  limestone.  These 
soils  have  been  moderately  to  severely  eroded,  and  are 
very  severely  limited  in  use  by  the  hazard  of  erosion. 
The  soils  of  this  unit  are — 

Benevola  clay  loam,  8  to  15  percent  slopes,  severely  eroded. 
Corydon  clay  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Duffield  silt  loam,  8  to  25  percent  slopes,  severely  eroded. 
Duffield  silt  loam,  15  to  25  percent  slopes,  moderately  eroded. 
Etowah  gravelly  loam,  15  to  25  percent  slopes,  moderately 
eroded. 

Frankstown  and  DuflSeld  channery  silt  loams,  15  to  25  percent 

slopes,  moderately  eroded. 
Frankstown  and  Duffield  channery  silt  loams,  8  to  15  percent 

slopes,  severely  eroded. 
Hagerstown  clay  loam,  8  to  15  percent  slopes,  severely  eroded. 
Hagerstown  clay  loam,  15  to  25  percent  slopes,  moderately 

eroded. 

Hagerstown  silt  loam,  15  to  25  percent  slopes,  moderately 
eroded. 

Hagerstown  silty  clay  loam,  15  to  25  percent  slopes,  moderately 
eroded. 

Westmoreland  channery  silt  loam,  3  to  20  percent  slopes, 

severely  eroded. 
Westmoreland  channery  silt  loam,  20  to  30  percent  slopes, 

moderately  eroded. 

These  soils  are  scattered,  generally  in  small  areas, 
throughout  the  limestone  valley  and  in  a  few  spots  in  the 
western  part  of  the  county.  There  are  about  3,600  acres, 
or  1.2  percent  of  the  county. 

Partly  because  they  developed  in  material  derived  from 
or  influenced  by  limestone,  these  soils  are  productive. 
They  lose  productivity  rapidly  if  they  are  cultivated  too 
frequently.  The  slopes  are  too  steep  to  be  used  for  annual 
tilled  crops  without  serious  risk  of  erosion.  Some  of  the 
soils  already  have  been  severely  eroded. 

The  soils  of  this  capability  unit  have  been  and  are 
being  used  for  general  crops,  as  a  rule  in  fairly  long 
I'otations.  Some  areas  are  in  pasture,  and  they  are  well 
suited  to  that  use.  The  soils  are  much  better  suited  to 
close-growing  hay  crops  than  to  clean-tilled  crops.  Con- 
siderable corn  is  grown,  but  generally  no  other  row  crops. 
Some  small  grains  are  grown,  and  there  are  orchards  on 
these  soils  in  the  western  part  of  the  county. 

Because  many  areas  of  these  soils  are  small,  the  ten- 
dency has  been  to  manage  them  along  with  the  surround- 
ing, more  gently  sloping  soils.  It  is  difficult  and  some- 
times impractical  to  have  a  separate  cropping  system  for 
these  small  areas.  Many  areas  of  these  soils,  however. 


are  in  long,  narrow  strii)s  approximately  at  right  angles 
to  the  slope  of  the  land.  Tliese  strips  are  well  suited  to 
permanent  hay  that  will  not  refj^uire  rotation,  and  they 
need  very  lit  tle  plowing  or  other  tdlage.  It  is  much  Ixitter 
to  have  a  strip  of  alfalfa  or  other  permanent  hay  witliin 
a  cidtivatod  fiehl  than  to  ti-y  to  include  steep  or 
severely  eroded  soil  in  the  rotation  itself. 

If  corn  or  any  other  clean-cultivated  crop  must  be 
planted  on  tliese  soils,  it  should  be  only  for  1  year  in  5  or 
more  yeai's.  Corn  should  be  grown  in  contour  strips  with 
perhaps  a  terrace  below  or  above  it,  or  both,  if  the  lay 
of  the  land  permits.  If  the  sod  strips  are  kept  as  per- 
manent meadows,  they  need  to  l)e  plowed  and  replanted 
only  when  the  sod  becomes  thin. 

Although  these  soils  are  fertile,  they  need  care  to  keep 
them  productive.  Excess  water  must  be  very  carefully 
disposed  of  because  of  the  danger  of  gullying  or  sheet 
erosion. 

CAPABILITY  UNIT  IVe-8 

In  this  unit  are  rolling  to  hilly,  deep,  well-drained  soils 
that  have  not  been  appreciably  influenced  by  limestone, 
but  are  severely  limited  in  use  by  the  hazard  of  erosion. 
These  soils  are  like  those  in  capability  unit  IIIe-4,  but 
they  are  steeper.    The  soils  of  this  unit  ai-e — 

Braddock  and  Thurmont  gravelly  loams,  15  to  25  percent 
slopes. 

Edgemont  and  Laidig  channery  loams,  20  to  35  percent  slopes, 

moderately  eroded. 
Fauquier  channery  loam,  20  to  35  percent  slopes,  moderately 

eroded. 

Fauquier  silt  loam,  shallow,  3  to  20  percent  slopes,  moderately 
eroded. 

Highfield  gravelly  loam,  20  to  35  percent  slopes,  moderately 
eroded. 

Holston  gravelly  loam,  15  to  25  percent  slopes,  moderately 
eroded. 

Laidig  gravelly  loam,  15  to  25  percent  slopes,  moderately 
eroded. 

Murrill  gravelly  loam,  15  to  25  percent  slopes,  moderately 
eroded. 

Myersville  channery  loam,  20  to  30  percent  slopes,  moderately 
eroded. 

Waynesboro  gravelly  loam,  15  to  25  percent  slopes,  moderately 
eroded. 

The  soils  of  this  unit  are  present  in  many  parts  of  the 
county.  The  total  area  is  about  5,000  acres,  or  1.7  percent 
of  the  county. 

Some  of  the  areas  in  this  capability  unit  remain  in 
forest.  Most  of  the  others  are  in  hay  crops  or  pastures. 
The  same  crops  are  grown  as  on  most  of  the  adjacent 
soils,  which  are  generally  of  capability  units  Ile^, 
IIIe-4,  or  IIIe-44,  Avith  scattered  spots  of  soils  of  1-4. 
Orchards  are  fairly  common  on  some  of  these  soils,  par- 
ticularly north  and  east  of  Smithsburg. 

These  soils  are  suitable  for  long  rotations  in  which  they 
are  clean  cultivated  only  1  year  in  5  or  6  years.  Manage- 
ment practices  are  similar  to  those  for  the  soils  in  unit 
IVe-1.  The  great  difference  between  these  two  capability 
units  is  that  the  soils  of  this  unit  are  generally  less  fertile 
and  productive  than  those  of  unit  IVe-1.  But  even  if 
they  do  not  produce  yields  so  good  as  those  on  the  lime- 
stone-influenced soils,  they  respond  well  to  good  manage- 
ment. Most  of  these  soils  are  especially  well  suited  to 
grass-clover  pasture. 


76 


SOIL  SURVEY  SERIES   195  9,  NO.  17 


CAPABILITY  UNIT  IVe-5 

This  capability  unit  consists  of  somewhat  droughty, 
slo])ing  to  rolling,  moderately  or  severely  eroded,  gnvveliy 
and  sandy  soils  that  are  se\erely  limited  by  the  hazard 
of  further  erosion.  The  soils  of  this  unit  are — 

llolstou  gravelly  sandy  loam,  8  to  15  percent  slopes,  severely 
eroded. 

iMurrill  gravelly  sandy  loam,  8  to  15  percent  slopes,  severely 
eroded. 

Murrill  gravelly  sandy  loam,  15  to  25  percent  slopes,  mod- 
er;itely  eroded. 

Waynesboro  gravelly  sandy  loam,  8  to  15  i>ercent  slopes, 

se\orely  eroded. 
AViiyiiesboi-()  gravelly  sandy  loam,  15  to  25  percent  slopes, 

moderately  eroded. 

These  soils  are  on  old  terraces  and  on  foot  slopes  mostly 
near  the  Potomac  lliver.  The  total  area  is  only  4G2  acres, 
a  little  less  than  two-tenths  of  1  percent  of  the  county. 

Like  the  other  soils  of  subclass  IVe,  these  soils  cannot 
be  cultivated  with  safety  except  at  long  intervals.  Rota- 
tions sijuilar  to  those  given  for  soils  of  capability  luiits 
IVe-1  or  IVe-3  can  be  used.  However,  the  light,  sandy 
soils  of  this  capability  imit  are  less  productive  because 
they  are  somewhat  droughty  and  generally  lower  in 
supply  of  plant  initrients.  If  local  climatic  and  other 
factors  are  favorable  (air  drainage  is  extremely  impor- 
tant), the  soils  of  this  unit  are  fairly  well  suited  to 
orchards. 

Whatever  the  use,  these  soils  must  be  protected  from 
erosion.  Liberal  use  of  fertilizer  and  manure  is  needed 
for  whatever  crop  is  planted.  Irrigation  will  increase 
yields  greatly  and  is  probably  practical  on  orchards  if 
water  is  available. 

CAPABILITY  UNIT  IVe-9 

In  this  capability  unit  are  strongly  sloping  to  hilly 
soils  that  have  a  tight  subsoil  that  restricts  internal 
drainage.  External  drainage  is  rapid.  These  soils  have 
been  moderately  eroded  and  are  severely  limited  by  the 
hazard  of  further  erosion.  They  are — 

Buclianan  gravelly  loam,  15  to  25  percent  slopes,  moderately 
eroded. 

Monongaliela  silt  loam,  15  to  25  percent  slopes,  moderately 
eroded. 

There  ai-e  only  a  few  scattered  areas  of  these  soils  and 
they  are  in  the  western  part  of  the  county.  They  amount 
to  i43  acres,  or  one-twentieth  of  1  percent  of  the  county. 

These  soils  have  excessive  runoff  during  wet  periods; 
rain  or  snowmelt  water  penetrate  them  very  slowly,  be- 
cause of  the  tight  subsoil.  They  are  thus  especially  sub- 
ject to  erosion.  The  tight  subsoil  also  causes  the  soil  to 
remain  very  wet  after  normal,  well-drained  soils  have 
dried  enough  that  they  can  be  tilled.  Annual  crops  must 
be  planted  late,  after  normal  seeding  time. 

For  these  reasons,  if  clean-tilled  ci'ops  are  grown,  they 
should  be  grown  in  a  long-time  rotation  with  hay  crops,  or 
perhaps  with  rotation  pasture.  Pasture  should  not  be 
grazed  during  wet  weather,  but  should  be  held  in  reserve 
for  di'ier  times  of  the  year.  Pasture  may  not  carry  well 
through  extremely  dry  weather,  because  the  tight  subsoil 
limits  the  moisture-supplying  capacity. 

These  soils  must  be  well  managed  or  they  will  be 
severely  damaged  by  erosion. 


CAPABILITY  UNIT  IVe-10 

This  cai)al)ilily  unit  consists  of  strongly  sloping  to 
hilly,  shallow  to  moderately  deep  soils  that  are  underlain 
by  acid  shale  and  mica  schist.  The  soils  of  this  unit  are — 

Calvin  channery  loam,  20  to  30  percent  slopes. 
Calvin  channery  loam,  20  to  30  percent  slopes,  moderately 
eroded. 

Chandler  silt  loam  and  channery  silt  loam,  10  to  20  i)ercent 

slopes,  ni(^derately  eroded. 
Talhulega  gravelly  silt  loam,  thick  solum  variant,  10  to  20 

percent  slopes,  severely  eroded. 
Talladega  gravelly  silt  loam,  thick  solum  variant,  20  to  30 

percent  slopes. 

These  soils  are  in  various  parts  of  the  county.  They 
occupy  about  1,070  acres,  or  six-tenths  of  1  percent  of  the 
county. 

The  soils  of  this  capability  unit  are  shallow  or  mod- 
erately deep,  and  they  contain  many  fragments  of  rock. 
Most  of  them  are  ratiier  low  in  I'eitility  and  tend  to  be 
di-oughty  during  periods  of  low  rainfall.  They  are  all 
sub  ject  to  a  seA  ere  hazard  of  ei'osion.  The  severely  eroded 
soils  are  less  productive  than  the  others. 

A  considerable  part  of  the  soils  not  moderately  or 
severely  eroded  is  still  in  forest.  Most  of  these  wooded 
areas  are  not  large.  They  generally  consist  of  blocks  of 
trees  or  of  woodlots  on  fairly  steep  slopes.  The  cleared 
areas  are  used  mostly  for  hay  crops  or  for  pasture  and 
some  for  tree  and  berry  fruits.  Enough  corn  and  small 
grains  are  grown,  or  have  been  grown,  to  expose  many 
areas  of  these  soils  to  active  erosion.  Pastures  are  gen- 
erally rather  poor  and  overgrazed. 

Tliese  soils  should  be  used  for  tilled  crops  no  more  often 
than  1  year  in  about  .5,  and  hay  or  pasture  crops  should  be 
gi-o\\  n  the  rest  of  the  rotation.  iMore  tree  and  beriy  fruits 
could  be  planted.  Well-sodded  and  well-managed  or- 
chards are  suitable  for  the  soils  in  this  capability  unit. 

Because  of  their  limiting  features,  these  soils  must  be 
especially  well  managed  if  production  is  to  be  maintained 
on  them.  Good  management  of  pasture  is  especially 
needed  because  these  soils  cannot  normally  produce  as 
much  grazing  as  can  the  deeper  and  better  soils.  The 
chance  of  overgrazing,  therefore,  is  greater. 

CAPABILITY  UNIT  IVe-26 

This  unit  consists  of  rolling,  well-drained  soils  on 
cherty  limestone.  The  soils  are  very  severely  limited  by 
the  hazard  of  erosion.  They  are- 
Frederick  cherty  silt  loam,  8  to  15  percent  slojjes,  severely 
eroded. 

Frederick  cherty  silt  loam,  15  to  25  percent  slopes,  moderately 
eroded. 

These  soils  are  on  strongly  sloping  ridges  in  the  west- 
ern part  of  the  county.  They  occupy  only  about  1,200 
acres,  or  four-tenths  of  1  jjercent  of  the  county. 

These  soils  are  so  severely  eroded  or  so  strongly  slop- 
ing that  they  are  very  severely  limited  for  use  for  cul- 
tivated crops.  Possibly  their  most  intensive,  safe  use 
would  be  for  orchards,  which  need  to  be  kept  in  sod  or 
in  cover  crops  most  of  the  time.  Otherwise,  they  can  be 
Vised  for  hay  or  for  carefully  controlled  grazing.  A 
clean-tilled  crop  should  be  grown  only  about  once  in 
5  years. 


WASHINGTON  COUNTY,  MARYLAND 


77 


Good  niani)<;(MutMit  will  prevent  further  excessive  loss 
of  soil.  The  soils  of  (his  unit  are  not  so  readily  erodihle 
as  many  others  that  have  similar  slopes.  They  are  fairly 
open  and  porous,  and  the  surface  layer  is  generally  fairly 
well  paved  with  fragments  of  chert  gravel,  which  mini- 
mizes the  splashing  eil'ects  of  heavy  rainfall.  Any  crops, 
and  particularly  orchards,  should  be  planted  and  culti- 
vated on  the  contour.  Carefully  constructed  and  main- 
tained waterways  and  outlets  should  be  installed  wher- 
ever water  tends  to  concentrate. 

CAPABILITY  UNIT  IVe-31 

This  capability  unit  consists  of  rolling  to  hilly,  some- 
what excessively  drained  soils  that  are  shallow  over 
shale  or  sandstone  and  have  been  influenced  by  lime.  The 
soils  of  tliis  unit  are  very  severely  limited  by  the  hazard 
of  erosion.  They  are — 

Litz  channcry  loam,  10  to  20  percent  slopes,  severely  eroded. 
Litz  shaly  loam,  10  to  20  percent  slopes,  moderately  eroded. 
Litz-Teas  chanuery  silt  loams,  8  to  15  percent  slopes,  severely 
eroded. 

Litz-Teas  channery  silt  loams,  15  to  25  i>ercent  slopes,  mod- 
erately eroded. 

The  total  area  is  about  1,800  acres,  or  six-tenths  of  1 
percent  of  the  county. 

These  soils  are  shallower  than  those  of  capability  unit 
IVe-10,  but  the  shale  and  sandstone  from  which  they 
have  been  developed  were  rich  in  lime.  Also,  the  soils 
tend  to  be  somewhat  more  naturally  fertile  than  those 
of  capability  unit  IVe-10. 

Because  these  soils  are  so  shallow,  any  cultivation,  how- 
ever limited,  must  be  accompanied  by  intensive  conserva- 
tion measures.  In  most  places  there  is  only  a  little  more 
than  a  foot  of  soil  over  the  bedrock.  "Wlien  the  soils  are 
properly  managed  and  protected,  however,  they  are 
fairly  productive.  Yields  would  be  greater  if  supple- 
mental irrigation  were  available  during  dry  periods. 

A  common  use  of  these  soils  is  for  orchards,  and  this 
use  is  suitable  and  safe  if  the  orchards  are  well  sodded 
and  otherwise  protected.  Clean-cultivated  crops  should 
be  grown  no  oftener  than  once  in  about  5  years.  Even 
then,  planting  and  cultivation  should  be  in  contour  strips, 
with  all  necessary  precautions  to  check  runoff  and  hold 
the  soil. 

CAPABILITY  UNIT  IVe-32 

In  this  capability  unit  are  rolling  to  hilly,  somewhat 
excessively  drained  to  excessively  drained  soils  that  are 
shallow  or  very  shallow  over  acid  shale  or  mica  schist. 
These  soils  are  very  severely  limited  by  the  hazard  of 
erosion  and  by  droughtiness  and  low  fertility.  The  soils 
of  this  unit  are — 

Berks  channery  loam,  ridges,  10  to  20  percent  slopes,  severely 
eroded. 

Berks  channery  loam,  ridges,  20  to  30  percent  slopes,  mod- 
erately eroded. 

Berks  shaly  silt  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

Berks  silt  loam,  ridges,  10  to  20  percent  slopes,  severely 
eroded. 

Berks  silt  loam,  ridges,  20  to  30  percent  slopes,  moderately 
eroded. 

Calvin  shaly  loam,  10  to  20  percent  slopes,  moderately  eroded. 
Calvin-Berks  channery  loams,  3  to  20  percent  slopes,  severely 
eroded. 

Calvin-Berks  channery  loams,  20  to  30  percent  slopes,  mod- 
erately eroded. 


Calvin  .M(»iilcvallo  slialy  loams,  10  to  20  percent  slopes,  niod- 
eralely  eroded. 

Hazel  cliannery  silt  loam,  10  to  20  percent  slopes,  moderately 
eroded. 

Montevallo  shaly  loam,  10  to  20  percent  slopes,  moderately 
eroded. 

The  total  area  of  this  unit  is  about  8,200  acres,  or  2.7 
percent  of  the  county. 

These  soils  are  as  shallow  as  those  of  capability  unit 
IVe-;31.  They  are  more  strongly  acid  and  usually  less 
productive.  Although  they  are  suitable  for  limited  culti- 
vation with  proper  precautions  and  good  management, 
they  are  of  such  limited  productivity  that  use  other  than 
for  an  occasional  cultivated  crop,  hay  and  grazing,  or 
orchards  will  probably  give  poor  returns.  Forested  areas 
should  remain  in  forest.  Grazed  areas  should  be  protected 
carefully  from  overgrazing  and  cultivated  areas  used 
seldom  for  clean-tilled  crops,  but  chiefly  for  hay. 

CAPABILITY  UNIT  Vs-1 

This  unit  consists  of  practically  level,  well-drained, 
very  rocky  soils.  The  rocks  are  chiefly  outcrops  of  lime- 
stone. These  soils  cannot  be  cultivated  regularly.  If  they 
are  used  for  pasture  or  woodland,  they  are  not  subject 
to  deterioration,  because  their  chief  limitation  is  rockiness. 
These  soils  have  been  mapped  as  one  undifferentiated 
unit — 

Hagerstown,  Corydon,  and  DufBeld  very  rocky  silt  loams, 
0  to  3  percent  slopes. 

These  soils  are  in  scattered  areas  throughout  the  lime- 
stone valley.  They  amount  to  424  acres,  a  little  more  than 
one-tenth  of  1  percent  of  the  county. 

These  soils  are  nearly  level,  fertile,  well  drained,  and 
not  significantly  eroded.  They  are  too  rocky,  however, 
for  cultivated  crops  or  for  a  normal  rotation.  Some 
patches  could  be  used  for  corn  or  hay  crops,  but  only  by 
hand  cultivation.  Therefore,  these  soils  are  limited  in 
use  almost  entirely  to  grazing  or  to  woodland. 

The  maintenance  of  a  vegetative  cover  of  either  pasture 
plants  or  trees  will  protect  these  soils  from  erosion.  These 
rocky  soils  make  excellent  pasture,  although  either  mow- 
ing or  control  of  weeds  with  chemicals  is  more  than 
normally  difficult.  In  pasture  the  control  of  brush  also 
may  have  to  be  a  hand  operation,  but  this  will  not  be 
time  consuming  or  difficult  if  it  is  repeated  at  regular 
intervals. 

These  soils  are  excellent  for  woodlots  if  the  trees  are 
protected  from  fire  and  from  grazing.  All  of  the  local 
trees  will  do  well  if  given  a  reasonably  good  chance. 

CAPABILITY  UNIT  Vs-2 

In  this  unit  are  nearly  level  or  very  gently  sloping, 
stony  and  very  stony  soils,  most  of  them  well  drained, 
that  have  not  been  affected  by  limestone.  Regular  culti- 
vation is  not  practical,  but  the  soils  have  practically  no 
limitations  other  than  their  stoniness.  Some  spots  are 
only  moderately  well  drained,  and  a  few  areas  may  be 
occasionally  temporarily  flooded.  The  soils  of  this  unit 
are — 

Chewacla  stony  silt  loam. 

Edgemont  and  Laidig  very  stony  loams,  0  to  5  percent  slopes. 
Highfield  very  stony  loam,  0  to  5  percent  slopes. 
Pope  stony  gravelly  loam. 


78 


SOIL  SURVEY  SERIES    1959,  NO.  17 


Some  areas  ol"  these  soils  are  on  nearly  level  ridgetops, 
and  some  are  on  nari'ov^?,  stony  flood  plains.  Most  of  the 
areas  are  on  or  adjacent  to  South  Mountain.  There  are 
415  acres,  or  a  little  more  than  one-tenth  of  1  percent  of 
the  county. 

These  soils  are  not  suitable  for  crops  or  for  normal 
rolalions  because  the  surface  layer  is  too  stony.  Stones, 
boulcUM's,  and  some  rock  outcrops  make  up  about  40 
percent  of  the  surface  area.  This  is  enough  to  prevent 
modern  mechanized  farmwork,  although  some  row  crops 
or  hay  could  be  produced  by  more  primitive  methods. 

The  chief  ditlerence  between  these  soils  and  those  of 
cai)ability  unit  Vs-1  is  that  nearly  all  of  the  stones  are 
loose  and  rounded,  and  of  acid  rock  material ;  in  unit  Vs-1 
they  are  ledges  of  limestone.  The  soils  of  this  cai)ability 
unit  are  also  somewhat  less  fertile  than  those  of  capa- 
bility unit  Vs-1,  and  will  generally  yield  less  pasture 
forage  or  fewer  woodland  i)roducts.  Pastures  should  be 
limed  and  fertilized,  as  needed,  and  weeds  and  brush 
should  be  controlled.  Woodlands  should  be  protected  from 
burning  and  from  grazing. 

CAPABILITY  UNIT  VIo-1 

This  capability  unit  consists  of  rolling  and  severely 
eroded,  or  steep  and  moderately  eroded,  well-drained, 
deep  soils  that  are  underlain  by  limestone.  The  soils  of 
this  unit  are — 

Elliber  olierty  loam,  25  to  4.j  ptn-cent  slopes,  moderately  eroded. 
Frankstowu  and  Uiiflield  chaunery  silt  loams,  15  to  25  percent 

slopes,  severely  eroded. 
Frankstowu  and  Duffield  chaunery  silt  loams,  25  to  45  percent 

slopes,  moderatel.v  eroded. 
Frederick  clierty  silt  loam,  15  to  25  percent  slopes,  severely 

eroded. 

Fredericlv  clierty  silt  loam,  25  to  45  percent  sloi)es,  moderately 
eroded. 

Hagerstown  clay  loam,  15  to  25  percent  slopes,  severely  eroded. 
Hagerstown  and  Duffield  silt  loams,  25  to  45  pei'cent  slopes, 

moderately  eroded. 
Westmoreland  cliannery  silt  loam,  20  to  30  percent  slopes, 

severely  eroded. 

These  soils  are  in  all  the  limestone  areas  of  the  county. 
The  total  area  is  about  2,000  acres,  or  a  little  less  than 
seven-tenths  of  1  percent  of  the  county. 

These  are  fertile  and  productive  soils,  but  they  are  too 
steep  or  have  been  too  severely  eroded  to  be  used  safely 
for  cultivated  crops.  They  might  produce  fairly  good 
hay,  but  the  crop  would  be  difficult  to  cut  and  to  cure. 
A  much  safer,  and  generally  better,  use  is  to  keep  the  soils 
in  permanent  sod  pasture  or  in  woodland.  Properly  man- 
aged pastures,  particularly  if  they  are  not  overgrazed, 
can  be  among  the  better  pastures  of  the  county.  Although 
the  carrying  capacity  is  not  so  great  as  on  the  soils  of 
capability  units  I-l,  IIe-1,  IIIe-1,  and  IVe-1,  it  should 
be  greater  than  on  any  other  soils  of  class  VI.  The  soils 
can  also  be  safely  used  for  woodland  if  protected  from 
grazing  and  from  fire. 

CAPABILITY  UNIT  YIe-2 

This  capability  unit  consists  of  rolling  and  severely 
eroded,  or  steep  and  moderately  eroded,  well-drained, 
fairly  deep  soils  that  have  not  been  appreciably  affected 
by  limestone.  The  soils  of  this  unit  are — • 

Edgemont  and  Laidig  cliannery  loams,  35  to  60  percent  slopes, 
moderately  eroded. 


Holston  gravelly  loam,  8  to  25  percent  slopes,  severely  eroded. 
Ilolston  gravelly  loam,  25  to  45  percent  slopes,  moderately 
eroded. 

Murrill  gravelly  loam,  8  to  25  percent  slopes,  severely  eroded. 
iNIurriU  gravelly  loam,  25  to  45  percent  slopes,  moderately 
eroded. 

Murrill  gravelly  sandy  loam,  15  to  25  percent  slopes,  severely 
eroded. 

Myersville  cliannery  loam,  30  to  45  percent  slopes,  moderately 
eroded. 

Myersville  cliannery  silt  loam,  10  to  30  percent  slopes,  severely 
eroded. 

Waynesboro  gravelly  loam,  15  to  25  percent  slopes,  severely 
eroded. 

Waynesboro  gravelly  loam,  25  to  45  percent  slopes,  moderately 
eroded. 

These  soils  are  in  scattered  spots  in  many  parts  of  the 
county.  There  are  about  1,200  acres,  or  four-tenths  of  1 
percent  of  the  county. 

None  of  these  soils  can  be  cultivated  witliout  undue 
loss  of  soil,  even  with  all  the  erosion  control  measures 
that  could  be  feasibly  carried  out.  Such  crops  as  corn 
or  oats  could  be  grown,  but  only  at  the  e.xpense  of  losing 
the  vegetation-supporting  upper  layers  of  soil. 

Some  of  the  less  eroded  areas  are  in  forest.  The  areas 
now  being  cropped  are  continuing  to  deteriorate.  Some 
of  the  areas  are  idle  and  not  producing.  l*robably  a 
larger  acreage  is  in  pasture  than  in  any  other  use. 

Pasture  and  woodland  are  the  only  really  suitable  uses 
for  these  soils.  Bluegrass  does  well  on  most  of  the  soils, 
and  good  pastures  can  be  maintained  with  careful  man- 
agement. The  chief  precaution  after  sod  is  established  is 
to  prevent  overgrazing.  Livestock  should  be  excluded 
from  these  pastures  during  any  summer  "brown-out"  of 
the  sod.  The  soil  should  be  tested  regularly  and  limed 
or  fertilized  as  needed.  Good  pastures  will  not  maintain 
themselves  on  these  soils;  it  takes  very  good  management 
to  maintain  them. 

CAPABILITY  UNIT  VIe-3 

In  this  unit  are  shallow  soils  that  range  from  sloping 
and  severely  eroded  to  moderately  steep  and  practically 
uneroded.  The  soils  of  this  unit  are — 

Berks  shaly  silt  loam,  15  to  25  percent  slopes,  moderately 
eroded. 

Calvin  channery  loam,  30  to  45  percent  slopes. 
Calvin  shaly  loam,  10  to  20  percent  slopes,  severely  eroded. 
Calvin  shaly  loam,  20  to  30  percent  slopes. 
Calvin-Montevallo  shaly  loams,  20  to  30  percent  slopes,  mod- 
erately eroded. 

Chandler  silt  loam  and  channery  silt  loam,  20  to  30  percent 
slopes. 

Hazel  channery  silt  loam,  10  to  20  percent  slopes,  severely 
eroded. 

Hazel  channery  silt  loam,  20  to  30  percent  slopes,  moderately 
eroded. 

Litz  shaly  loam,  10  to  20  percent  slopes,  severely  eroded. 
Litz  shaly  loam,  20  to  30  percent  slopes,  moderately  eroded. 
Litz-Teas  channery  silt  loams,  15  to  25  percent  slopes,  severely 
eroded. 

Litz-Teas  channery  silt  loams,  25  to  45  percent  slopes,  mod- 
erately eroded. 

Montevallo  shaly  loam,  10  to  20  percent  slopes,  severely  eroded. 
Montevallo  shaly  loam,  20  to  30  percent  slopes,  moderately 
eroded. 

Talladega  gravelly  silt  loam,  thick  .solum  variant,  20  to  45 
percent  slopes,  moderately  eroded. 

These  soils  are  shallower  than  the  others  of  class  VI. 
They  occupy  7,600  acres,  or  2.5  percent  of  the  county. 

Tliere  is  little  difference  in  necessary  management  be- 
tween these  soils  and  those  of  capability  units  Vle-1 


WASHINGTON  COUNTY,  MARYLAND 


79 


and  VIe-2.  Because  those  soils  are  shallow,  however,  Ihey 
(eiul  to  be  more  drou<2;h(y.  Tims,  the  (greatest  practical 
(lilhnvnce  is  in  carrviii<?  ca])acity,  particularly  durinf? 
hot,  dry  weather.  (Jrazinii-  aiiiinals  should  not  be  allowed 
on  these  soils  during  such  periods.  Ivow  crops  and  small 
grains  should  not  be  grown  because  of  the  hazards  of 
drought  and  erosion. 

CAPABILITY  UNIT  VIw-l 

This  unit  consists  of  only  one  poorly  drained  to  very 
poorly  drained  soil  mappin<j  unit — Dunning  and  Melviu 
silty  clay  loams.  This  soil  is  subject  to  frequent  serious 
damage  by  flooding  or  overflow.  It  occupies  about  1,900 
acres,  or  six-tenths  of  1  percent  of  the  county. 

This  soil  should  be  kept  in  permanent  vegetation,  such 
as  pasture  or  woodland.  To  be  of  much  use  as  pasture, 
it  needs  artificial  drainage.  Diversions  and  waterways 
are  needed  to  keep  water  from  adjacent  upland  soils 
from  spreading  out  on  this  soil.  Surface  drainage  can 
be  improved  by  V-type  ditches  at  proper  spacing.  Spoil 
material  should  be  spread  away  from  the  ditches,  and  the 
banks  and  slopes  should  be  protected  by  sod.  Ditches 
are  especially  needed  to  drain  any  abnormally  wet  spots. 
Tile  drains  might  work  well  in  some  places,  but  the  cost 
is  likely  to  be  more  than  the  returns  would  justify. 

This  soil  is  also  suitable  for  woodland ;  trees  should  be 
of  species  that  tolerate  wetness,  maless  artificial  drainage 
is  to  be  established. 

CAPABILITY  UNIT  VIs-1 

This  unit  consists  of  sloping  to  steep,  well-drained, 
very  rocky  soils  that  are  limited  both  by  rockiness  and 
by  hazard  of  erosion.  The  rocks  are  outcrops  of  limestone. 
The  soils  of  this  unit  are — 

Corydon  very  rocky  clay  loam,  3  to  45  percent  slopes, 

moderately  eroded. 
Duffield  very  rocky  silt  loam,  3  to  15  percent  slopes. 
DuflSeld  very  rocky  silt  loam,  8  to  45  percent  slopes,  moderately 

eroded. 

Frankstown  very  rocky  silt  loam,  3  to  15  percent  slopes, 

moderately  eroded. 
Frankstown  very  rocky  silt  loam,  15  to  45  percent  slopes, 

moderately  eroded. 
Hagerstown  very  rocky  silt  loam,  3  to  15  percent  slopes, 

moderately  eroded. 
Hagerstown  very  rocky  silt  loam,  15  to  45  percent  slopes, 

moderately  eroded. 
Hagerstown  very  rocky  silty  clay  loam,  3  to  15  percent  slopes, 

moderately  eroded. 
Hagerstown  very  rocky  silty  clay  loam,  15  to  45  percent  slopes, 

moderately  eroded. 

These  very  rocky  soils  are  extensive  throughout  the 
limestone  areas  of  the  county.  Altogether,  they  occupy 
about  25,500  acres,  or  8.6  percent  of  the  county. 

The  soils  of  this  capability  unit  are  much  like  those 
of  capability  unit  Vs-1,  except  that  they  are  steeper  or 
have  been  more  severely  eroded.  Because  of  the  rockiness, 
slope,  and  risk  of  erosion,  cropping  these  soils  would  be 
entirely  impractical.  Nearly  all  of  the  areas  have  been 
cleared,  and  most  of  them  are  used  for  pasture.  Erosion 
was  generally  a  result  of  overgrazing,  which  destroyed 
some  of  the  soil-protecting  sod  between  the  outcrops  of 
limestone.  The  soils  are  naturally  fertile,  however,  and 
responsive  to  treatment  so  that  sod  can  be  readily  reestab- 
lished and  maintained  with  proper  management. 


Where  practical,  some  of  the  rock  should  be  removed. 
Bluegrass  or  other  gra.sses  along  with  suitable  <;lovers  will 
make  excellent  pasture  sod.  Lime  may  be  needed,  and 
some  fertilizer  almost  certainly  will  be  needed.  These 
piactices,  along  with  control  of  weeds  and  the  prevention 
of  overgrazing,  should  result  in  very  good  pastures  on 
soils  tliat  are  suitable  for  this  use  but  for  little  else 
except  woodland. 

CAPABILITY  f.MT  Vis  2 

This  capability  unit  consists  of  gently  sloping  to  moder- 
ately steep,  very  stony  soils  that  are  well  di'ained  and  not 
affected  by  limestone.  The  uses  of  these  soils  are  limited 
both  by  stoniness  and  by  some  hazard  of  erosion.  The 
soils  of  this  unit  are — 

Edgemont  and  Laidig  very  stony  loams,  5  to  35  percent  slopes. 
Fauquier  very  stony  loam,  5  to  35  percent  slopes. 
Ilighfield  very  stony  loam,  5  to  30  percent  slopes. 
Laidig  very  stony  loam,  8  to  25  percent  slopes. 
Myersville  very  stony  loam,  3  to  30  percent  slopes,  moderately 
eroded. 

These  soils  are  mostly  on  South  Moiuitain  and  on  Elk 
Ridge,  although  some  areas  are  in  the  western  part  of 
the  county.  There  are  about  16,500  acres,  or  5.6  percent 
of  the  county. 

Stoniness  is  the  chief  limiting  characteristic  of  these 
soils.  If  they  were  not  stony,  the  gently  and  moderately 
sloping  soils  would  be  suitable  for  cultivation.  Most  of 
the  areas  are  forested,  but  some  are  cleared  and  used  for 
pasture.  Practically  none  of  the  cleared  land  is  cultivated. 
A  good  use  for  these  soils  is  woodland,  and  the  areas 
now  forested  should  probably  remain  so.  Forests  yield 
timber  and  give  good  protection  for  watersheds  and  for 
wildlife  areas. 

Cleared  areas  make  fairly  good  pasture,  however,  if 
they  are  properly  managed.  Wliere  practical,  some  of 
the  stones  should  be  removed,  and  the  soils  should  be 
treated  with  appropriate  amoimts  of  lime  and  fertilizer 
and  seeded  to  bluegrass  or  orchardgrass  with  one  or 
more  of  the  clovers.  Overgrazing  of  pastures  should  be 
avoided,  particularly  before  grasses  and  clovers  are  well 
established.  Even  after  sod  is  established,  overgrazing 
is  the  greatest  hazard.  Control  of  weeds  and  brush  may 
be  somewhat  difficult  on  these  soils,  but  it  must  be  carried 
out  if  pastures  are  to  be  kept  in  first-class  condition. 

Areas  of  cleared  land,  not  intended  for  pasture,  should 
be  reforested.  All  forests  should  be  protected  from  graz- 
ing; protection  of  newly  planted  or  restocked  forests  is 
particularly  needed.  Fires  should  be  prevented  also. 

CAPABILITY  UNIT  VIIe-1 

This  unit  consists  of  very  steep  or  very  severelj'  eroded 
soils  that  are  underlain  by  limestone.  The  soils  of  this 
unit  are — 

EUiber  cherty  loam,  45  to  55  percent  slopes. 
Eroded  land,  limestone  materials. 

Frankstown  and  Duffield  channery  silt  loams,  25  to  45  percent 
slopes,  severely  eroded. 

These  soils  are  m  the  limestone  valley  and  on  some 
ridges  in  the  western  part  of  the  county.  The  total  area 
is  about  800  acres,  a  little  less  than  three-tenths  of  1 
percent  of  the  county. 


80 


SOIL  SURVEY  SERIES   1959,  NO.  17 


Allliough  these  very  steep  soils  or  very  severely  eroded 
soils  arc  iiiliereiitly  fertile,  no  attempt  should  be  made 
to  use  them  for  crops  or  pasture.  Forested  areas  should 
remain  forested,  and  all  cleared  areas  should  be  reforested. 
Obtaining  a  stand  of  seedlings  may  be  dillicult,  but,  once 
the  trees  are  established,  they  should  make  fairly  rapid 
growth.  Timber  operations  may  be  diflicult,  and  econom- 
ically they  may  not  be  practical.  The  establishment  of 
permanent  cover,  however,  whether  economically  feasible 
or  not,  will  furnish  watershed  protection  and  at  least 
some  possibility  of  return.  All  forested  areas  should  be 
fenced  to  keep  grazing  animals  out.  These  forested  areas 
make  good  wikUife  cover,  especially  if  they  are  bordered 
by  hedgerows  of  seed-producing  grasses  or  shrubs. 

CAPABILITY  UNIT  VIIe-2 

This  iniit  consists  only  of  very  severely  eroded  land 
types.  The  two  general  kinds  of  land  are — 

Eroded  land,  grcoustone  materials. 

Eroded  land,  sandstone  and  (luarlzite  materials. 

There  are  322  acres  of  this  capability  unit.  This  is 
one-tenth  of  1  percent  of  the  county. 

These  eroded  lands  have  been  cleared  and  farmed,  and 
the  farming  has  resulted  in  exceptionally  severe  erosion. 
The  soils  are  acid  to  very  strongly  acid,  unlike  those  of 
capability  unit  VIIe-1.  These  areas  should  not  be  culti- 
vated; they  are  too  eroded  and  most  of  them  are  too 
steep  even  for  grazing.  Thus,  they  are  of  little  use  in 
agriculture,  except  for  forests,  watershed  protection,  and 
wildlife  cover.  Forests  probably  will  be  poor.  Some  areas 
may  reforest  themselves  if  they  are  fenced  and  protected 
from  grazing  and  fire;  others  coidd  be  replanted.  With 
proper  protection,  such  refoi'ested  areas  are  likely  to 
become  more  valuable  than  they  possibly  could  under  any 
type  of  farming. 

CAPABILITY  UNIT  VIIe-3 

This  unit  consists  of  very  steep  or  severely  eroded, 
shallow  soils.  The  soils  of  this  unit  are — 

Berks  soils,  ridges,  20  to  45  percent  slopes,  severely  eroded. 
Berks  soils,  ridges,  30  to  60  percent  slopes. 
Calvin  channery  loam,  4.1  to  60  percent  slopes. 
Calvin  shaly  loam,  30  to  45  percent  slopes. 
Calvin-Berks  channery  loams,  30  to  60  percent  slopes,  mod- 
erately eroded. 

Calvin-Montevallo  shaly  loams,   20  to   45   percent  slopes, 

severely  eroded. 
Calvin-Montevallo  shaly  loams,  30  to  60  percent  slopes. 
Eroded  land,  shale  and  schist  materials. 

Hazel  channery  silt  loam,  20  to  30  percent  slopes,  severely 
eroded. 

Hazel  channery  silt  loam,  30  to  45  percent  slopes. 

Litz  shaly  loam,  20  to  30  percent  slopes,  severely  eroded. 

Litz  shaly  loam,  30  to  45  percent  slopes,  moderately  eroded. 

Litz  shaly  loam,  30  to  45  percent  slopes,  severely  eroded. 

Litz  shaly  loam,  45  to  60  percent  slopes. 

Montevallo  shaly  loam,  20  to  30  percent  slopes,  severely  eroded. 

These  soils  are  in  almost  all  parts  of  the  county,  except 
in  the  limestone  valley.  Altogether,  they  occupy  about 
11,400  acres,  slightly  less  than  4  percent  of  the  county. 

These  soils  are  not  suitable  for  crops.  Because  of  their 
many  adverse  characteristics,  they  cannot  be  recommended 
for  either  hay  or  pasture.  Some  of  the  least  eroded,  very 
steep  spots  are  still  in  forest.  All  the  severely  eroded  and 
very  severely  eroded  parts  were  once  cultivated.  Most  of 
these  eroded  areas  are  now  either  in  very  poor  pasture  or 


lying  idle;  they  are  still  deteriorating  and  will  con- 
tinue to  do  so  while  they  do  not  have  the  protection  of 
a  complete  and  undisturbed  vegetative  cover.  For  protec- 
tion of  the  land  below  them,  they  should  be  reforested. 

CAPABILITY  UNIT  VIIs-1 

This  unit  includes  all  severely  eroded,  very  rocky  soils ; 
all  very  steep,  very  rocky  soils;  and  all  extremely  rocky 
soils  of  the  county.  Rockiness  is  the  result  of  massive 
outcrops  of  limestone.    The  soils  of  this  unit  are — ■ 

Corydon  extremely  rocky  clay  loam,  0  to  15  percent  slopes. 
Dullield  extremely  rocky  silt  loam,  0  to  15  percent  slopes. 
Erankstovvn  extremely  rocky  silt  loam,  0  to  25  percent  slopes. 
Frankstown  extremely  rocky  silt  loam,  25  to  45  percent  slopes. 
Frankstown  very  rocky  silt  loam,  8  to  15  percent  slopes, 

severely  eroded. 
Hagerstown  extremely  rocky  silt  loam,  0  to  25  percent  slopes, 

moderately  eroded. 
Hagerstown  extremely  rocky  silty  clay  loam,  0  to  25  percent 

slopes,  moderately  eroded. 
Hagerstown  extremely  rocky  soils,  25  to  45  percent  slopes. 
Hagerstown  very  rocky  silty  clay  loam,  8  to  15  percent  slopes, 

severely  eroded. 
Hagerstown  very  rocky  soils,  45  to  55  percent  slopes. 
Rocky  eroded  land. 

These  soils  are  located  wherever  there  are  limestone 
outcrops,  but  most  of  them  are  in  the  great  limestone 
valley.  The  total  area  is  about  17,500  acres,  or  6  percent 
of  the  county. 

These  soils  have  fairly  high  natural  fertility.  They  are 
too  rocky  and  many  of  them  are  much  too  severely  eroded 
to  be  managed,  e\en  for  pasture.  Some  areas  might  fur- 
nish very  limited  grazing  but  not  enough  to  be  of  any 
practical  importance. 

Because  of  their  inherent  fertility,  these  soils  could 
support  good  woodlots  if  they  were  planted  with  suitable 
kinds  of  trees  and  carefully  protected  from  fire  and  graz- 
ing. Timber  operations  will  be  very  diflicult  on  some  of 
the  steep  and  extremely  rocky  areas,  but  forestry  is  still 
the  best  economic  use  of  the  soils.  Good  woodland  cover 
will  also  provide  an  excellent  habitat  for  many  types  of 
wildlife. 

CAPABILITY  UNIT  VIIs-2 

In  this  unit  are  all  the  shallow,  very  stony  soils  and  all 
the  steep,  very  stony  soils  of  the  county.  All  are  under- 
lain by  acid  rocks ;  none  are  influenced  by  limestone.  The 
soils  of  this  unit  are — 

Dekalb  and  Leetonia  very  stony  sandy  loams,  0  to  25  percent 
slopes. 

Dekalb  and  Leetonia  very  stony  sandy  loams,  25  to  45  percent 
slopes. 

Dekalb  and  Leetonia  very  stony  sandy  loams,  45  to  60  percent 
slopes. 

Dekalb  and  Lehew  very  stony  loams,  0  to  25  percent  slopes. 
Dekalb  and  Lehew  very  stony  loams,  25  to  45  percent  slopes. 
Edgemont  and  Laidig  very  stony  loams,  35  to  60  percent  slopes. 
Highfield  very  stony  loam,  30  to  45  percent  slopes. 
Laidig  very  stony  loam,  15  to  45  percent  slopes,  moderately 
eroded. 

Myersville  very  stony  loam,  30  to  55  percent  slopes,  eroded. 
Stony  rolling  land. 

Most  of  these  soils  are  on  South  Mountain  or  on  Elk 
Ridge.  The  total  area  is  about  9,700  acres,  or  3. .3  percent 
of  the  county. 

Although  these  soils  are  vei\y  ston}^  and  some  of  them 
are  steep,  they  are  all  suitable  for  some  kind  of  forest. 
They  are  not  good  forest  soils,  but  they  should  produce 
some  timbei\   The  soils  would  furnish  no  substantial 


WASHINGTON  COUNTY,  MARYLAND 


81 


economic  return  in  any  oilier  !i<i:i-icul( mal  use.  There  is 
no  good  reason  for  clearing  any  of  the  areas  for  fanning. 
Removal  of  timber  products  should  be  selective  while 
the  land  remains  in  forest.  JNIost  of  these  soils  are  in 
State  or  National  forests  and  parks.  This  is  an  excellent 
use  for  them. 

CAPABII.ITY  UNIT  VIIIs-1 

This  capability  unit  consists  of  only  one  soil  mapping 
unit,  which  is  Stony  steep  land.  It  is  too  rough,  stony, 
and  steep  for  any  agricultural  use.  There  are  2,713  acres 
in  the  county,  or  nine-tenths  of  1  percent  of  the  total 
area. 

Parts  of  these  areas  have  a  cover  or  partial  cover  of 
trees  and  shrubs.  They  nnist  be  considered  in  class  VIII, 
however,  because  the  production  of  timber  or  other  forest 
products  is  not  and  never  will  be  a  feasible  economic 
operation.  Most  of  these  areas  furnish  good  cover  for 
wildlife  and  are  so  located  that  they  furnish  sites  for 
hiking,  camping,  picnicking,  and  other  forms  of  recre- 
ation. Thus,  although  this  land  has  no  use  in  agricultiu-e, 
it  is  of  considerable  importance  to  the  citizens  of  the 
county. 

Use  of  Soils  for  Woodland 

Washington  County  is  in  that  part  of  eastern  United 
States  where  the  forests  are  dominated  by  hardwood 
trees.  "\'\niile  some  conifers,  probabl}'  redcedar,  white 
pine,  Virginia  pine,  and  hemlock,  undoubtedly  grew 
there  when  the  county  was  first  settled  by  Europeans, 
there  is  no  historical  reason  to  believe  that  any  of  them 
existed  in  even  fairly  pure  stands. 

Practically  no  truly  a- irgin  forests  remain  in  the  county. 
However,  a  few  small  tracts  have  been  observed  that 
show  no  evidence  of  having  been  altered  by  the  activities 
of  man  or  domestic  animals.  At  the  time  this  soil  survey 
was  made,  there  remained  a  total  of  about  84,000  acres 
of  woodland  in  the  county;  this  is  about  28  percent  of 
the  county.  According  to  the  U.S.  Census  of  Agriculture, 
there  were  31,029  acres  of  woodland  in  farms  in  1954.  H 
can  be  assumed  that  the  other  forests  (about  63,000 
acres)  are  on  public  lands  or  on  other  areas  not  classified 
as  farm  holdings.  Farm  woodlands  decreased  by  some 
3,000  acres  between  1949  and  1954. 

The  value  of  commercial  timber  cut  from  private  lands 
in  1949  was  $18,500,  and  the  yearly  average  from  1952 
through  1956  was  $88,500  according  to  the  Marjdand 
Department  of  Forests  and  Parks.  The  increase  in 
yearly  value  is  because  of  a  small  increase  in  volume  and 
a  much  larger  increase  in  unit  values.  In  1954,  about 
one-fourth  of  the  income  derived  from  the  sale  of  timber 
products  came  from  famis,  and  the  rest,  from  nonfarm 
areas.  Considerable  volumes  of  small  forest  products 
are  cut  and  sold  or  used  on  the  farm  by  landownei'S  who 
do  not  report  them.  Increased  interest  in  woodland  man- 
agement and  higher  timber  prices  indicate  that  the  an- 
nual values  of  timber  and  other  woodland  products 
should  increase. 

In  the  main,  the  remaining  foi'ests  of  Washington 
County  are  in  the  mountainous  areas  and  in  the  ridge  and 
valley  section  west  of  Fairview  Mountain.  There  are  no 


signilicani  remaining  forests  either  in  the  great  valley  or 
in  Pleasant  Valley  on  the  better  soils  of  those  areas. 
Trees  are  growing  on  some  once-cultivated  lands  that  be- 
came so  severely  eroded  or  otherwise  detei-iorated  that 
they  were  abaiuloned  and  allowed  to  revegetate  naturally. 

There  are  four  general  kinds  of  forests  in  the  county. 
One  kind  is  old-growth  hardwood  forest.  Another  is 
forest  on  well-drained  uplands  that  has  bec^n  cut  over 
one  or  more  times.  A  third  kind  is  forest  that  grows  in 
poorly  drained  areas;  and  the  fourth  is  forest  that  grows 
where  abandoned  fields  and  pastures  are  reforesting 
naturally. 

Old-groioth  hardwood  forests. — These  forests  are  al- 
most all  on  large  farms  and  estates.  Their  total  acreage 
is  small.  The  dominant  trees  are  white  oak,  red  oak, 
and  chestnut  oak.  'J'here  are  some  yellow-poplar,  locust, 
and  hickory  trees,  and  a  few  black  walnut  trees. 

These  forests  have  not  been  exploited  because,  to  their 
owners,  their  esthetic  or  sentimental  value  is  greater  than 
the  value  of  the  timber.  Many  of  the  trees  are  mature 
or  overmature.  Under  proper  forest  management,  the  old 
trees  should  be  marketed  to  make  space  for  the  growth 
of  younger  trees. 

Cutover  forests  on  well-drained  sites. — Most  of  the 
forests  in  the  comity  are  of  this  kind.  Oaks  are  dominant, 
and  the  secondary  trees  are  elm,  hickory,  locust,  maple, 
and  dogwood.  On  some  of  the  thinner  and  more  droughty 
soils,  there  is  some  shortleaf  pine  and,  in  a  few  places, 
some  Virginia  pine.  Most  of  the  farm  woodlots,  which 
vary  greatly  in  composition  and  condition,  are  included 
in  this  kind  of  forest. 

Most  of  these  cutover  forests  get  little  protection  from 
fire  or  grazing.  Besides  their  value  for  producing  timber, 
these  forests  are  valuable  for  watershed  protection  and 
for  wildlife  shelter. 

Forests  on  poorly  drained  sites.- — These  forests  gi'ow 
on  poorly  drained  soils  of  the  uplands  and  on  some  of  the 
terraces  and  flood  plains  along  streams.  Almost  all  of 
them  have  been  cut  over.  The  species  of  trees  are  different 
from  those  in  the  cutover  forests  of  drier  sites.  Pin  oak 
and  scarlet  oak  are  the  common  species,  but  the  stands 
include  hickory,  swamp  maple,  and  other  maples,  some 
elm,  birch,  and  willow.  Some  areas  have  an  undergi-owth, 
and  others  have  nearly  pure  stands  of  species,  such  as 
alder,  that  have  no  economic  value. 

These  forests  are  of  little  economic  importance.  They 
furnish  some  fenceposts,  and  most  of  them  are  good  wild- 
life shelter.  Many  have  been  thinned  so  that  pastures 
could  be  developed  and  only  enough  trees  have  been 
left  to  provide  shade  for  livestock. 

Forests  in  abandoned  fields. — Most  of  these  forests  are 
in  fields  that  were  no  longer  cultivated  because  they  be- 
came too  eroded  to  support  crops  or  good  pastures.  Under 
natural  revegetation,  the  first  plants  to  become  establish- 
ed are  sassafras,  persimmon,  and  hawthorn,  blackberry, 
and  other  shrubs.  In  time,  these  are  followed  by  oak, 
hickory,  dogwood,  locust,  and  other  trees.  In  some  places 
stands  of  Virginia  pine  and  shortleaf  pine  have  become 
established. 

These  forests  should  receive  regular  forest  management. 
Areas  that  are  still  in  the  brushy  stage  should  be  planted 
with  valuable  species  of  trees. 


82 


SOIL  SURVEY  SERIES   1959,  NO.  17 


Relationships  of  soils  and  forests 

Soils  vary  in  their  ability  to  produce  trees,  just  as  they 
do  in  their  ability  to  produce  crops.  Trees  grow  better 
on  the  soils  that  contain  some  lime  than  they  do  on  the 
soils  that  are  entirely  acid.  Soils  that  are  no  longer  pro- 
ductive for  crops  or  pasture  are  likely  to  be  less  produc- 
tive of  ti-ees  than  they  were  before  they  were  cleared. 
Ditierences  in  elevation  and  climate  also  affect  the  growth 
of  trees. 

In  Washington  County  differences  in  slope,  elevation, 
and  climate  have  significant  effects  on  the  growth  of 
trees,  but  differences  in  soils  probably  have  stronger 
effects.  Sandy  and  somewhat  droughty  soils  are  more 
suitable  for  germination  of  the  seed  of  Virginia  pine  than 
for  the  seed  of  hardwood  trees.  As  a  seedbed,  severely 
eroded  soils  that  have  much  of  the  subsoil  exposed  are 
inferior  to  uneroded  soils  that  have  friable,  granular 
surface  soil.  On  deep,  permeable  soils  the  windthrow 
hazard  is  less  serious  than  on  shallow  soils. 

Soils  affect  the  ease  of  harvesting  timber  and  the 
hazards  involved  in  logging.  Some  areas  are  too  steep 
and  too  rough  even  for  temporary  roads  for  logging 
vehicles.  In  these  areas  logs  generally  can  be  skidded 
out  by  cables.  Few  forests  in  the  county  are  extensive 
enough  to  justify  building  permanent  access  or  logging 
roads.  Temporary  roads  should  be  built  as  nearly  as 
possible  on  the  contour,  because  most  of  the  sloping 
upland  soils  erode  readily.  To  prevent  gullying,  the 
I'oads  should  not  be  allowed  to  become  rutted. 

Trees  have  significant  effects  on  the  soils  of  forested 
areas,  especially  on  the  surface  layer.  Under  a  good  stand 
of  hardwood  trees  in  an  ungrazed  upland  area,  there  is 
generally  a  cover  of  leaf  litter  2  inches  or  more  thick. 
The  litter  slows  runoff',  tends  to  keep  the  surface  laj'er 
friable,  and  allows  rainwater  and  snowmelt  to  soak  in. 
As  the  litter  decays  or  is  consumed  by  earthworms  or 
other  animals,  plant  nutrients  are  added  to  the  soil.  The 
litter  under  pine  trees  is  more  acid,  contains  fewer  plant 
nutrients,  and  has  less  beneficial  effect  on  the  surface 
soil  than  the  litter  of  hardwoods. 

Reforestation 

Soils  that  are  well  suited  to  crops  and  pasture  generally 
are  also  well  suited  to  forests.  However,  only  soils  no 
longer  productive  for  crops  or  pasture  are  likely  to  have 
greater  value  for  forest  rj'. 

The  soils  that  are  steep  or  severely  eroded  should  be 
given  priority  in  any  reforestation  program.  They  will 
probably  give  greater  returns  from  forest  products  than 
from  any  other  use,  and,  in  addition,  the  trees  protect  the 
soils.  Because  severely  eroded  soils  generally  are  not  the 
best  forest  sites,  help  should  be  sought  from  the  district 
forester  assigned  to  the  county  whenever  reforestation 
is  considered. 

Soil  groups  for  forestry 

This  section  contains  a  grouping  of  the  soils  of  Wash- 
ington County  according  to  their  suitability  for  woodland. 
Mixed  oaks  were  used  as  the  index  trees  in  making  the 
grouping  because  they  are  the  most  common  forest  trees 
of  the  county.  Most  of  the  soils  in  the  county  are  classified 
as  excellent  sites  for  mixed  oaks.  Some  soils  are  rated 


as  good,  and  others  are  rated  as  medium  or  poor.  Group 
Fl,  the  excellent  sites  for  mixed  oak  trees,  consists  of 
deep  soils  that  have  no  real  impediment  to  the  penetration 
of  roots.  The  good  sites  include  some  soils  that  are  fairly 
shallow  over  bedrock  or  that  have  a  claypan  or  siltpan 
that  hinders  the  deep  peneti'ation  of  roots.  Medium  sites 
include  the  shallow  soils.  Poor  sites  are  the  soils  not 
suitable  for  growing  oak  trees  because  they  are  excessively 
steep,  rough,  very  shallow,  or  eroded. 

Soils  have  been  listed  in  woodland  suitability  groups  by 
giving  names  of  the  soil  types.  Some  further  statements 
about  slope  and  degree  of  erosion  are  given  to  indicate 
placement  of  the  mapping  units  that  are  sloping  or  eroded 
phases  of  soil  types,  and  still  further  information  is 
given  about  the  influence  of  a  southern  exposure  on 
ratings  of  the  sloping  soils.  In  general,  a  slope  greater 
than  25  percent,  or  a  southern  exposure,  reduces  the 
site  value  of  a  good  soil  by  one  or  two  groups.  All  very 
severely  eroded  soils,  and  severely  eroded,  shallow  soils, 
are  in  the  lowest  site  group. 

Woodland  suitability  groups  of  soils  in  the  county 
and  the  soils  in  each  group  are  given  in  the  following 
list.  Except  as  noted  for  six  poorly  drained  soils  in 
group  Fl,  the  soils  have  been  rated  for  production  of 
the  mixed  oak  trees  that  were  common  in  the  native 
forests. 

Soil  group  Fl. — Excellent  soils  for  woodland.  They 
can  produce  high  yields  of  good  quality  forest  crops  and 
are  suitable  for  intensive  forest  management  if  well 
stocked.  Poorly  drained  soils  in  this  group  are  not  suit- 
able sites  for  mixed  oak  trees,  and  their  rating  is  based 
on  the  production  of  pin  oak. 

Ashton  fine  sandy  loam. 

Atkins  silt  loam   (poorly  drained). 

Benevola  clay  loam. 

Braddock  and  Thurmont  gravelly  loams. 

Brinkerton  silt  loam  (poorly  drained). 

Chewacla  gravelly  sandy  loam. 

Chewacla  silt  loam. 

Cliewacla  stony  silt  loam. 

Congaree  silt  loam  and  gravelly  loam. 

Duffleld  silt  loam. 

Duffield  extremely  rocky  silt  loam. 
Duffield  very  rocky  silt  loam. 
Dunmore  cherty  silt  loam. 

Dunning  and  Melvin  silty  clay  loams  (poorly  drained). 

Edgemont  and  Laidig  channery  loams. 

Edgemont  and  Laidig  very  stony  loams. 

Elliber  cherty  loam. 

Etowah  gravelly  loam. 

Etowah  silt  loam. 

Fauquier  channery  loam. 

Fauquier  silt  loam. 

Fauquier  very  stony  loam. 

Frankstown  extremely  rocky  silt  loam. 

Frankstown  very  rocky  silt  loam. 

Frankstown  and  DuflSeld  channery  silt  loams. 

Frederick  cherty  silt  loam. 

Hagerstown  clay  loam. 

Hagerstown  extremely  rocky  silt  loam. 

Hagerstown  extremely  rocky  silty  clay  loam. 

Hagerstown  silt  loam. 

Hagerstown  silty  clay  loam. 

Hagerstown  very  rocky  silt  loam. 

Hagerstown  very  rocky  silty  clay  loam. 

Hagerstown,  Corydon,  and  DuflBeld  very  rocky  silt  loams. 

Hagerstown  and  DuflBeld  silt  loams. 

Highfield  gravelly  loam. 

Highfield  very  stony  loam. 

Holston  gravelly  loam. 


WASHINGTON   COUNTY,  MARYLAND 


83 


Holston  gravelly  sandy  loam. 

Holstoii  silt  loam. 

Hunt iiifltoii  lino  sandy  loam. 

Huntington  tii'avolly  loam. 

Huntington  silt  loam. 

Uuntington  silt  loam,  local  alluvium. 

Laidig  gravelly  loam. 

Laidig  very  stony  loam. 

Largent  silt  loam. 

Lindside  silt  loam. 

Lindside  silt  loam,  loeal  alluvium. 

Melvin  silt  loam  (poorly  drained). 

Murrill  gravelly  loam. 

Murrill  gravelly  sandy  loam. 

Murrill  silt  loam. 

Myersville  eliannery  loam. 

Myersville  ebaunery  silt  loam. 

Myersville  silt  loam. 

Myersville  very  stony  loam. 

I'hilo  gravelly  sandy  loam. 

Philo  silt  loam. 

Pope  Hue  sandy  loam. 

Pope  gravelly  loam. 

Pope  gravelly  sandy  loam. 

Pope  silt  loam. 

Pope  stony  gravelly  loam. 

Rohrersville  silty  clay  loam  (poorly  drained). 
Talladega  gravelly  silt  loam,  thick  solum  variant 
Terrace  escarpments. 
Thurmont  gravelly  loam. 
Warners  loam. 
Waynesboro  gravelly  loam. 
Waynesboro  gravelly  sandy  loam. 
W'ehadkee  silt  loam  (poorly  drained). 
Westmoreland  channery  silt  loam. 

Soil  group  F2. — Good  soils  for  woodland.  The  rate 
of  growth  is  not  so  rapid  as  on  the  excellent  soils,  but  it 
will  justify  fairly  intensive  management.  Wood  pi'oducts 
of  high  quality  can  be  grown. 

Berks  channery  loam,  ridges. 

Berks  shaly  silt  loam. 

Berks  silt  loam,  ridges. 

Buchanan  gravelly  loam. 

Calvin  channery  fine  sandy  loam. 

Calvin  channery  loam. 

Calvin  shaly  loam. 

Calvin-Berks  channery  loams. 

Chandler  silt  loam  and  channery  silt  loam. 

Corydon  clay  loam. 

Corydon  extremely  rocky  clay  loam. 

Corydon  very  rocky  clay  loam. 

Fauquier  silt  loam,  shallow. 

Hagerstown  extremely  rocky  soils. 

Hagerstown  very  rocky  soils. 

Landisburg  cherty  silt  loam. 

Leadvale  gravelly  silt  loam. 

Monongahela  gravelly  loam. 

Monongahela  silt  loam. 

Trego  gravelly  silt  loam. 

Tyler  silt  loam. 

Southern  slopes  of  25  percent  or  more  of  soil  types  listed  in 
group  Fl. 

Soil  group  F3. — Medium  soils  for  woodland.  These 
soils  will  grow  fairly  good  timber,  but  growth  is  slow. 

Berks  soils,  ridges. 
Calvin-Montevallo  shaly  loams. 
Dekalb  and  Lehew  very  stony  loams. 
Hazel  channery  silt  loam. 
Litz  channery  loam. 
Litz  shaly  loam. 
Litz-Teas  channery  silt  loams. 
Montevallo  shaly  loam. 

Slope  phases  of  40  percent  or  more  of  soil  types  listed  in 
group  F2. 


Soil  group  F4. — Soil.s  and  land  types  that  are  pooi-  tor 
woodland.  The  growth  rate,  especially  of  hardwood  trees, 
is  very  slow. 

Dekalb  and  Leetonia  very  stony  sandy  loams. 

Kroded  land,  greenstone  materials. 

lOroded  land,  limestone  materials. 

lOroded  land,  sandstone  and  quartzite  materials. 

Eroded  land,  shale  and  schist  materials. 

Rocky  eroded  land. 

Stony  rolling  land. 

Stony  steep  land. 

Southern  exposures  of  slope  i)hases  of  40  percent  or  more, 

of  soil  types  listed  in  group  F2. 
All  severely  eroded  phases  of  soil  tyi)es  listed  in  group  F.3. 
All  southern  exposures  of  soil  types  listed  in  group  V'.i. 

Unfortunately,  the  soils  that  need  reforestation  the 
most  urgently  are  those  that  make  the  poorest  woodland 
sites.  These  soils  are  also  the  most  difficult  ones  on  which 
to  obtain  a  stand  of  trees.  This  is  particularly  true  be- 
cause the  seedlings  of  most  hardwood  trees,  including 
oaks,  are  difficult  to  transplant  and  the  rate  of  survival 
is  low.  Growth  is  irregular  and  very  slow  on  tlie  soils 
of  groups  F3  and  F4. 

Red  oak  and  black  walnut  can  be  planted  by  direct 
seeding.  Black  walnut,  in  particular,  needs  a  good  soil 
and  is  most  likely  to  be  successful  on  the  deeper  soils 
of  group  Fl.  Because  of  the  difficulty  of  establishing 
hardwoods,  in  general,  most  of  the  planting  that  is  done 
should  be  of  pine  trees.  According  to  information  sup- 
plied by  the  Maryland  Department  of  Forests  and  Parks, 
the  best  returns  in  Washington  County,  based  on  cords 
of  wood  produced,  will  be  obtained  from  plantings  of 
white,  shortleaf,  loblolly,  and  Corsican  pines. 

Although  the  county  is  outside  the  natural  range  of 
loblolly  pine,  this  species  may  prove  the  most  profitable 
for  planting,  particularly  on  sites  where  there  is  plenty 
of  moisture.  On  very  droughty  and  eroded  sites,  Virginia 
pine  is  probably  the  most  suitable  species  for  planting. 
Although  it  is  of  less  economic  importance  than  the  other 
pines  mentioned,  it  will  survive  on  poorer  sites.  It  will 
at  least  furnish  good  vegetative  protection  for  the  land 
and  will  provide  a  better  habitat  for  wildlife  than  the 
idle,  unoccupied  land. 

It  is  not  the  purpose  of  this  report  to  give  a  detailed 
account  of  forest  management,  either  as  it  is  being,  or 
should  be,  carried  out.  The  purpose  is  chiefly  to  point 
out  the  soils  on  which  forestry,  including  reforestation, 
might  be  an  economic  enterprise.  The  local  district  for- 
ester should  be  consulted  on  planting,  management,  and 
other  details  of  forestry  operations  either  on  a  farm  or 
on  a  more  extensive  woodland. 

Economic  return  is  not  the  only  benefit  to  be  derived 
from  forests.  Forests  should  be  left,  or  should  be  planted, 
to  protect  the  headwaters  of  streams;  to  reduce  runoff 
and  thus  help  to  control  floods  and  conserve  the  lands  not 
in  forests;  to  furnish  protective  cover  and  food  for  wild- 
life; to  maintain  public  and  private  recreational  areas; 
and  for  other  reasons  that  cannot  be  measured  directly  in 
dollars  and  cents.  Not  the  least  of  these  is  the  esthetic 
reason,  merely  to  maintain  and  enhance  the  beauty  of 
the  landscape  of  Washington  County. 


84 


SOIL  SURVEY  SERIES   195  9,  NO.  17 


Engineering  Uses  of  Soils' 

This  part  of  the  soil  survey  report  for  Washington 
County  is  intended  to  be  a  guide  to  physical  soil  properties 
and  to  the  influences  of  such  properties  on  problems  re- 
lated to  engineering.  It  is  generally  recognized  that  the 
soil  is  a  primary  resource  in  agricultural  production,  but 
it  is  not  so  widely  realized  that  soils  are  of  great  im- 
portance in  many  kinds  of  engineering  practices  and 
projects.  We  cannot  build  a  road,  excavate  a  basement, 
lay  a  waterlino  or  other  pipeline,  install  a  septic  tank, 
build  a  terrace  or  diversion  ditch,  or  create  an  artificial 
pond  without  confronting  problems  created  by  the  nature 
of  the  soil.  How  can  we  best  use  the  soil  material  that 
is  encountered,  and  how  will  the  nature  of  the  soil 
affect  the  job  at  hand? 

The  facts  on  which  this  section  is  based  were  obtained 
by  close  examination  of  soils  in  the  field,  and  by  evalua- 
tion of  tlie  physical  characteristics  exhibited  in  relation 
to  some  engineering  needs.  The  evaluations  were  verified 
by  some  laboratory  analyses.  Extensive  testing  was  not 
done  in  Washington  County,  but  many  interpretations 
were  based  on  physical  analyses  of  the  same  kinds  of 
soil  elsewhere,  particularly  in  neighboring  Frederick 
County  (7).  In  this  way,  careful  estimates  were  made 
of  some  physical  properties  of  the  soils  of  Washington 
County. 

It  is  not  intended  that  these  data  be  used  directly  for 
engineering  design.  These  facts  and  estimates  are  at  best 
a  guide;  engineering  design  should  be  based  on  field 
surveys  and  the  analysis  of  samples  from  construction 
sites.  For  example,  this  repoi^t  will  show  tliat  the  subsoil 
of  Tyler  silt  loam  is  not  suitable  for  fill  material  to  sup- 
port heavy  loads.  This  report  will  also  show  that  the 
subsoil  of  Etowah  gravelly  loam  is  suitable  for  earthern 
dams  for  small  ponds.  However,  it  will  not  show  just 
how  good  any  particular  spot  of  the  Etowah  subsoil  will 
be  for  building  a  dam;  tests  will  be  necessary  to  de- 
termine this.  The  soil  map,  moreover,  does  not  show 
the  small  inclusions  of  different  soils  that  are  pi'esent 
in  some  of  the  mapping  units.  For  example,  within  an 
area  of  Holston  soil,  which  is  a  source  of  good  fill  mate- 
rial, there  can  Ije  in  a  wet  spot  or  in  an  old  channel  a  very 
small  area  of  the  Tyler  soil.  It  is  too  small  to  map  but 
should  be  avoided  in  searching  for  fill  material. 

Engineering  descriptions  and  physical  properties 

The  significant  phj'sical  properties  of  Washington 
County  soils  are  given  in  table  6.  The  table  lists  the 
names  of  soils  and  the  symbol  for  each  soil  on  the  accom- 
panying detailed  soil  map,  except  the  complexes,  miscel- 
laneous land  types,  and  some  stony  or  steep  soils.  Table  6 
also  describes  the  soils  and  gives  the  engineering  classifica- 
tion of  each  significant  horizon  of  each  soil.  Items  not 
important  in  engineering,  such  as  color,  are  not  included. 
The  descriptions  do  include  such  items  as  the  general 
profile  characteristics,  the  kind  of  parent  material  or 

"  By  Earle  D.  Matthews  and  Kendall  P.  Jarvis.  Mr.  Jarvis  is 
State  conservation  engineer  for  Maryland  and  Delaware,  Soil 
Conservation  Service. 


oilier  substratum,  drainage  characteristics,  depth  to 
\vat('r  table  and  to  bedrock  where  these  are  known  and 
significant,  and  presence  of  gravel  or  stones. 

Table  6  also  lists  the  estimated  physical  properties  of 
the  soils,  by  major  horizons.  Major  horizons  of  all  the 
soils  of  a  series  are  much  alike  unless  there  has  been  a 
great  deal  of  erosion.  Unless  otherwise  specified,  the 
physical  characteristics  and  the  soil  descriptions  apply  to 
comparatively  uneroded  and  nonstony  soils,  but  there  are 
notes  on  the  degree  of  erosion,  stoniness,  content  of  gravel, 
and  other  items.  Thickness  of  the  soil  horizons  varies 
somewhat  from  place  to  place.  Thicknesses  given  in  the 
table,  as  well  as  the  other  properties,  are  those  actually 
existing  in  a  specific  profile  that  is  a  model  representative 
of  the  soil  being  described  and  characterized.  On  severely 
eroded  soils,  there  will  be  little,  if  any,  of  the  original 
surface  soil  remaining;  in  such  severely  eroded  soils,  the 
underlying  horizons  will  be  closer  to  the  eroded  surface 
than  indicated  in  the  table. 

Soil  textural  classes  of  the  United  States  Department 
of  Agriculture  are  defined  in  the  Soil  Survey  Manual  (9). 

The  Unified  classification  (10)  was  developed  at 
Vicksburg  Waterways  Experiment  Station  by  the  Corps 
of  Engineers,  U.S.  Army.  In  this  system  soil  material 
is  put  in  15  classes  that  are  designated  by  pairs  of  letters. 
These  classes  range  from  GW,  which  consists  of  well- 
graded  gravel,  gravel  and  sand  mixtures,  and  a  little  fine 
material,  to  Pt,  which  consists  of  peat  and  other  highly 
organic  soils. 

Many  highway  engineers  classify  soil  material  accord- 
ing to  the  AASHO  method  (1).  This  method  was 
adopted  by  the  American  Association  of  State  Highway 
Officials.  In  this  system  soil  materials  are  classed  in  seven 
principal  groups.  The  groups  range  from  A-1,  consist- 
ing of  soils  that  have  high  bearing  capacity,  to  A-7, 
consisting  of  clayey  soils  having  low  strength  when  wet. 

Soil  interpretations  for  engineering 

Table  7  lists  some  important  features  of  each  soil  of 
Washington  County  as  they  affect  different  kinds  of 
engineering  work.  These  interpretations  are  made  from 
table  6,  from  various  test  data,  and  from  field  experiences 
of  engineers  and  others.  Any  soil  may  be  well  suited 
to  one  engineering  purpose  but  poor  or  even  unsuitable 
for  some  other  purpose.  For  instance,  soils  of  the  Dun- 
more  series  should  be  fair  for  disposal  of  effluent  from 
septic  tanks,  poor  or  only  fair  for  road  subgrade,  and 
good  as  a  source  of  topsoil.  Soils  of  the  Litz  series 
should  be  poor  for  the  disposal  of  sewage  effluent,  good 
for  road  fill  and  subgrade,  and  only  fair  as  topsoil. 

Individual  soil  features  will  also  have  various  inter- 
pretations. A  fragipan  layer  within  the  subsoil  generally 
indicates  suitable  sites  for  ponds  or  reservoir  areas,  but 
poor  materials  for  embankments  or  dams;  it  greatly  in- 
creases the  difficulty  of  providing  adequate  drainage,  and 
limits  the  adaptability  of  the  soil  for  irrigation.  The 
purpose  of  table  7  is  to  suggest  indicators  of  either  good 
or  hazardous  features  that  may  be  of  help  in  planning, 
engineering  design,  or  construction. 


WASHINGTON  COUNTY,  MARYLAND 


85 


Tlio  interpretalioiis  in  table  7  are  general  but  will  point 
out  what  the  engineer  can  expect  to  encounter  in  any  soil 
area  that  is  shown  on  the  detailed  soil  jnap.  However, 
they  cannot  give  exact  soil  properties  and  evaluations  of 
the  soil  at  the  exact  points  where  engineering  projects 
may  be  planned,  and,  as  stated  elsewhere,  many  of  the 
mapping  units  contain  spots  of  difTerent  or  even  of  con- 
trasting soils  that  are  too  small  to  be  shown  at  the  scale 
of  mapping. 

Soil  groups  for  irrigation 

The  annual  rainfall  in  Washington  County  is  normally 
adequate  in  amount  for  the  crops  grown,  but  there  are 
periods  when  it  is  not  well  distributed  during  the  grow- 
ing season.  Because  there  are  frequent,  rather  extended 
periods  of  soil  moisture  deficiency  between  June  and 
September,  many  crops,  including  hay  crops  and  pasture, 
will  suffer.  If  adequate  irrigation  systems  and  water 
supplies  were  readily  available  during  such  periods,  re- 
ductions in  crop  yields,  as  in  the  summer  of  1957,  could 
be  prevented. 

This  section  of  the  report  arranges  the  better  agri- 
cultural soils  into  groups,  according  to  common  char- 
acteristics, which  would  show  significant  results  from 
conservation  irrigation.  Conservation  irrigation  simply 
means  applying  tiie  needed  amounts  of  irrigation  water, 
with  minimum  waste  of  water  and  damage  to  soil,  to 
maintain  productivity  at  a  high  level.  All  irrigation 
herein  considered  is  sprinkler  irrigation. 

The  following  information  is  not  intended  to  be  a  guide 
for  sprinkler  irrigation  design.  Such  a  guide  has  been  de- 
veloped by  engineers  of  the  Soil  Conservation  Service 
for  use  in  Maryland.  In  this  discussion  the  soils  will  be 
arranged  in  significant  groups  of  fairly  uniform  char- 
acteristics, and  for  each  group  certain  questions  about 
irrigation  will  be  answered.  How  deep  should  the  soil 
of  different  groups  be  irrigated  for  different  types  of 
crops  ?  How  much  water  should  be  applied  on  each  group 
for  each  crop,  and  how  fast  can  it  be  applied  without 
waste  or  damage?  The  answers  to  these  questions  will 
help  in  establishing  the  feasibility  of  irrigation  for  the 
various  soil  groups  and  will  give  some  basic  information 
useful  in  designing  irrigation  systems  for  conservation 
irrigation. 

Wlierever  conservation  irrigation  is  practiced,  it  should 
be  part  of  a  complete  farm  program  of  soil  and  water 
conservation.  Because  irrigation  is  expensive,  it  can  be 
used  economically  only  on  productive  soils  on  which 
production  can  be  assured  or  increased.  Proper  manage- 
ment of  such  soils  will  include  liberal  fertilization,  ade- 
quate liming,  and  good  rotations  or  other  cropping  sys- 
tems that  will  control  erosion,  minimize  leaching,  maintain 
good  soil  tilth,  and  furnish  a  supply  of  organic  matter. 
For  these  reasons,  only  soils  considered  suitable  for 
regular  cultivation  are  included  in  the  irrigation  soil 
groups.  These  soils  are  suitable  for  more  or  less  con- 
tinuous cultivation  with  the  kinds  and  intensities  of 
management  appropriate  in  each  case. 

Land  to  be  irrigated  advantageously  must  have  good 
drainage.  However,  in  addition  to  the  soils  of  the  county 


that  are  well  diaiiied,  some  only  modci-atcly  well  drained 
soils  are  included  in  the  irrigation  soil  groups.  Such 
soils  will  need  adequate  artificial  drainage  before  they 
iire  suit  able  for  ii-rigal  ion.  Soils  lliat  arc  sonic.wliiil  poorly 
(Iniiiicd  or  poorly  (hiiined  are  omitted  in  the  irrig;ilion 
soil  group,  as  are  all  severely  eroded  soils. 

A  common  mistake  of  new  irrigators  is  to  overextend 
the  use  of  the  available  water  supply.  An  adequate  water 
supply  must  be  available  if  irrigation  is  to  be  successful. 
The  water  supply  should  be  adequate  to  maintain  the 
soil  at  a  moisture  level,  or  a  series  of  moisture  levels,  that 
will  yield  the  greatest  return  for  the  funds  invested  in 
irigation.  The  ordinary  farm  pond  will  not  supply 
sufficient  water  for  irrigation,  except  perhaps  for  very 
small  home  gardens. 

Water  may  be  obtained  from  wells,  streams,  or  res- 
ervoirs. A  permit  to  drill  an  irrigation  well  or  construct 
a  pond  or  reservoir  must  be  obtained  from  the  State 
Department  of  Geology,  Mines  and  Water  Resources, 
located  at  Johns  Hopkins  University,  Baltimore.  That 
department  can  also  supply  information  on  ground  water 
possibilities  for  most  areas  of  the  State.  It  is  good  practice 
to  have  a  test  well  drilled  to  determine  if  an  adequate 
water  supply  is  available. 

Only  streams  with  sustained  or  continuous  flow  during 
extended  periods  of  drought  can  be  used  as  sources  of 
w\ater  for  irrigation.  The  streamflow  should  be  measured 
during  periods  of  drought  to  determine  if  sufficient  water 
is  available  at  such  times.  A  surface  reservoir  must  have 
a  storage  capacity  large  enough  to  meet  crop  needs  during 
the  irrigation  season,  including  losses  caused  by  evapora- 
tion and  seepage.  As  a  general  rule,  from  one-half  to 
1  acre-foot  of  storage  is  recommended  during  the  irriga- 
tion season  for  each  acre  to  be  irrigated.  If  the  reservoir 
can  be  refilled  between  irrigations,  then  the  capacity  need 
only  be  large  enough  to  provide  one  application. 

Quality  of  water  must  also  be  examined.  If  there  is 
any  question  about  suitability  of  water,  samples  should 
be  sent  to  the  State  Soil  Testing  Laboratory,  Agronomy 
Department,  University  of  Maryland,  College  Park.  This 
laboratory  will  analyze  water  for  acidity,  salt  content, 
or  other  constituents  that  might  be  harmful  to  crops.  If 
surface  runoff  water  is  used  for  irrigation,  it  should  not 
be  collected  from  areas  contaminated  by  plant  disease 
organisms  that  could  be  harmful  to  the  crops  to  be 
irrigated. 

Laws  and  regulations  govern  the  use  of  water  from 
streams  and  wells.  A  landowner  does  not  own  all  of 
the  water  in  the  stream  that  flows  through  his  land.  Land- 
owners who  plan  to  appropriate  water  for  irrigation 
from  channelized  streams  should  obtain  information  re- 
garding their  rights  from  qualified  sources,  before  in- 
vesting in  equipment. 

Some  locally  adapted  crops  are  indicated  under  each 
irrigation  soil  group.  Irrigation  soil  groups  are  defined 
in  table  8,  and  the  soils  included  in  each  group  are  listed. 
Tomatoes  and  Irish  potatoes  are  listed  separately,  but 
all  other  truck  crops  are  shown  simply  as  of  truck-crop 
groups  1,  2,  or  3. 


86 


SOIL  SURVEY  SERIES   19  59,  NO.  17 


Table  6. — Brief  description  of  soils 


Soil  name 


Dept  h  to 
season- 
ally high 
water 
table 


Depth  to 
bedrock 


Brief  description  of  site  and  soil 


Ashton  fine  sandy  loam,  0  to  5  i)ercent  slopes. 


Atkins  silt  loiim_ 


Benevola  clay  loam,  0  to  3  percent  slopes  

BiMiovola  clay  loam,  3  to  8  percent  slopes, 

moderately  eroded. 
Benevola  clay  loam,  8  to  15  percent  slopes, 

moderately  eroded. 
Benevola  clay  loam,  8  to  15  percent  slopes, 

severely  eroded. 

Berks  channcry  loam,  ridges,  0  to  10  percent 

slopes,  moderately  eroded. 
Berks  channery  loam,  ridyies,  10  to  20  percent 

slopes,  moderately  eroded. 
Berks  channery  loam,  ridges,  10  to  20  percent 

slopes,  severely  eroded. 
Berks  channery  loam,  ridses,  20  to  30  percent 

slopes,  moderately  eroded. 

Berks  shaly  silt  loam,  0  to  8  percent  slopes  

Berks  shaly  silt  loam,  3  to  8  percent  slopes, 

moderately  eroded. 
Berks  shaly  silt  loam,  S  to  15  percent  slopes, 

moderately  eroded. 
Berks  shaly  silt  loam,  15  to  25  percent  slopes, 

moderately  eroded. 
Berks  silt  loam,  ridges,  0  to  10  percent  slopes, 

moderately  eroded. 
Berks  silt  loam,  ridges,  10  to  20  percent  slopes, 

moderately  eroded. 
Berks  silt  loam,  ridges,  10  to  20  percent  slopes, 

severely  eroded. 
Berks  silt  loam,  ridges,  20  to  30  percent  slopes, 

moderately  eroded. 
Berks  soils,  ridges,  20  to  45  percent  slopes, 

severely  eroded. 
Berks  soils,  ridges,  30  to  60  percent  slopes  

Brinkerton  silt  loam,  0  to  8  percent  slopes  


Buchanan  gravelly  loam,   0  to   3  percent 
slopes. 

Buchanan   gravelly   loam,    3   to   8  percent 

slopes,  moderately  eroded. 
Buchanan  gravelly  loam,   8  to   15  percent 

slopes,  moderately  eroded. 
Buchanan  gravelly  loam,  15  to  25  percent 
slopes,  moderately  eroded. 

Calvin  channery  fine  sandy  loam,  3  to  10 

percent  slopes,  moderately  eroded. 
Calvin   channery  loam,  3    to    10  percent 

slopes,  moderately  eroded. 
Calvin   channery   loam,    10  to   20  percent 

slopes,  moderately  eroded. 
Calvin  channery  loam,   20  to   30  percent 
slopes. 

Calvin   channery   loam,    20   to   30  percent 

slopes,  moderately  eroded. 
Calvin  channery  loam,  30  to  45  percent  slopes. 
Calvin  channery  loam,  45  to  60  percent  slopes. 
See  footnotes  at  end  of  table. 


Feet 
4 


0-1 


Feet 
(') 


(') 

3-6 
3-6 

3-6 

0-4 

2-3 

2-3 

0-2 

2-3 

2-3 
2-3 

2-3 

2-3 

2-3 

2-3 

0-2 

2-3 

0-2 

0-3 

(') 


3  2 

(') 

3  2 

(') 

3  2 

(') 

3  2 

(') 

2-4 

2-3 

2-3 

2-3 

2-3 

2-3 

2-3 

Well-drained,  deep  soils  on  low  terraces;  devel- 
oped in  old  alluvium  derived  from  limestone. 
Subject  to  very  infrequent  flooding. 

Poorly  drained  soils  on  flood  plains;  of  recent 
alluvium  derived  from  acid  shale  and  sand- 
stone.   Very  wet;  fairly  frequently  flooded. 

Well-drained  upland  soils  developed  in  residuum 
from  highly  sandy  limestone.  Variable  depth 
to  bedrock,  with  occasional  outcrops.  Se- 
verely eroded  areas  have  a  CH  (A-7)  surface 
layer. 


Well-drained  to  somewhat  excessively  drained, 
shallow  upland  soils  developed  in  residuum 
from  acid  shale,  in  many  places  with  sand- 
stone. Channery  loams  have  sandstone  frag- 
ments in  the  surface  layer;  shaly  silt  loams 
have  shale;  silt  loams  have  little  shale  in  the 
surface  layer.  All  Berks  soils  have  abundant 
shale  in  the  subsoil  and  the  substratum. 
Severely  eroded  soils  have  lost  6  to  12  inches 
of  the  original  soil,  and  in  some  places  there 
are  many  gullies,  some  to  bedrock. 


Poorly  drained  soils  of  draws  and  depressions, 
developed  in  old  local  colluvium  and  alluvium 
from  acid  shale  areas.    Very  wet. 

Moderately  well  drained  soils  on  gravelly  coUu- 
vial  deposits  of  acid  sandstone  and  some  acid 
shale  material.    Moderately  wet. 


Somewhat  excessively  drained,  rather  shallow, 
upland  soils  developed  in  residuum  from  red- 
dish, acid  shale  and  sandstone.  Physical 
properties  given  are  for  Calvin  channery 
loam.  The  channery  fine  sandy  loam  has  an 
SM  to  GM  surface  layer.  The  shaly  loam 
lacks  sandstone  fragments.  Severelj'  eroded 
soils  have  lost  6  to  12  inches  of  the  original 
soil,  and  in  places  have  many  gullies,  some  to 
bedrock. 


WASHINGTON  COUNTY,  MARYLAND 

and  their  estimated  physical  properties 


87 


USDA  textural  class 


Fine  sandy  loam  

Loam,  fine  sandy  loam,  or 

silt  loam. 
Gravelly  loam  


Silt  loam  

Silty  clay  loam  

Gravelly  sandy  clay  loam 

Clay  loam  

Clay  or  clay  loam  

Gravelly  fine  sand  

Hard,  sandy  limestone  


Engineering  classification 


Unified 


Channery  loam  

Shaly  silt  loam  

Fragmented  shale- 
Hard  shale  


Silt  loam  

Shaly  silty  clay  loam  

Clay  

Gravelly  loam  

Silty  clay  loam  to  clay 
loam. 

Gravelly  loam  

Channery  loam  

Fragmented  shale  


SM. 
ML. 

GM. 

ML- 

CL, 
GC- 


AASHO 


A-2  or  A-4. 
A-4  


CL. 
CH. 
SP- 


SM  or  ML 
SM  or  ML. 
GM  


ML  

CL  

CH  

SM  or  GM 

CL  

GM  

GM  

GM  


A-2. 

A-4- 
A-6. 
A-2. 

A-6. 
A-7- 
A-3. 


Percentage  passing 
sieve — 


No.  4 


A-2  or  A-4 

A-4  

A-2  


A-4  

A-6  

A-7  

A-2  or  A-4 

A-6  

A-2  

A-2  

A-2  


Percent 
100 
100 

50 

100 
100 
50 

100 
100 
85 


90 
75 
20 


100 
85 
100 

70 
90 
60 


60 
35 


No. 
10 


Percent 
100 
95 

30 

100 
100 
40 

100 
100 
80 


80 
60 
10 


No. 
200 


Percent 
40 
55 

20 

75 
80 
25 

85 
90 
5 


100 
75 
100 

60 
85 
50 


50 

25 


45 
45 
5 


Selected  characteristics  significant  in  engineering 


Range  in 
permeability 


Inchet  per  hour 
0.  6-2.  0 
0.  2-2.  0 

0.  6-2.  0 

0.  6-2.  0 
0.  06-0.  2 
0.  06-0.  2 

0.  2-0.  6 
0.  2-0.  6 
2.  0-6.  3 


Reaction 


0.  6-2.  0 
0.  6-2.  0 


75 
70 
95 

40 
65 
30 


25 
10 


0.  2-0.  6 
0.  02-0.  06 
0.  0-0.  02 

0.  6-2.  0 
0.  06-0.  6 
0.  06-0.  2 


0.  6-2.  0 
2.  0-6.  3 


pll 
6.  1-7.  3 

6.  1-7.  8 

7.  4-8.  4 

5.  6-6.  5 

5.  1-5.  5 
4.  5-5.  0 

6.  6-7.  3 

6.  6-7.  8 

7.  4-9.  0 


Dispersion 


High. 
High. 


Moderate. 
Moderate. 
High  

Low  

Low  

High  


5.  1-5.  5 
4.  5-5.  0 
4.  5-5.  0 


5.  6-6.  0 

6.  1-6.  5 
5.  6-7.  3 

4.  5-5.  5 
4.  5-5.  0 
4.  5-5.  0 


4.  5-5.  5 
4.  5-5.  0 


Moderate- 
High  


Moderate  

Low  

Low  to  high. 


Shrink-swell 
potential 


Low. 
Low. 

Very  low. 
Low. 

Moderate. 
Moderate. 

Moderate. 
Moderate. 
None. 


Low. 
Low. 
None. 


Low. 

Moderate. 
Very  high. 

Low. 


Moderate  to 
high. 

Low   Moderate. 


High- 


Moderate  to 

high. 
High  


Low. 

Low. 
Verv  low. 


88 


SOIL  SURVEY  SERIES   195  9,  NO.  17 

Table  6. — Brief  description  of  soils  and  their 


Soil  name 


Depth  to 
season- 
ally high 
water 
table 


Feet 

Feel 

2-3 

\  ) 

2-3 

(^) 

1-2 

(^) 

2-3 

(^) 

2-3 

(^) 

3-4 

(^) 

3-4 

(^) 

3-4 

{') 

3-4 

1-2 

0) 

1-2 

(') 

1-2 

(') 

4 

(') 

Depth  to 
bedrock 


Brifif  description  of  site  and  soil 


Calvin  shaly  loam,  0  to  10  percent  slopes, 

moderately  eroded. 
Calvin  shaly  loam,  10  to  20  jxTcent  slopes, 

moderately  eroded. 
Calvin  shaly  loam,  10  to  20  percent  slopes, 

severely  eroded. 
Calvin  shaly  loam,  20  to  30  percent  slopes. 
Calvin  shaly  loam,  30  to  45  percent  slopes. 

Chandler  silt  loam  and  channery  silt  loam, 

0  to  10  percent  slopes. 
Chandler  silt  loam  and  channery  silt  loam, 

3  to  10  percent  slopes,  moderately  eroded. 
Chandler  silt  loam  and  channery  silt  loam, 

10  to  20  percent  slopes,  moderately  eroded. 
Chandler  silt  loam  and  channerj'  silt  loam,  20 

to  30  j)ercent  slopes. 

Chewacla  gravelly  sandy  loam  

Chewacla  silt  loam  

Chewacla  stony  silt  loam  


Congaree  silt  loam  and  gravelly  loam. 


Corj-don  clay  loam,  0  to  3  percent  slopes  

Corydon  clay  loam,  3  to  8  percent  slopes, 

moderately  eroded. 
Corydon  clay  loam,  8  to  15  percent  slopes, 

moderately  eroded. 
Corydon  extremelj'  rocky  clay  loam,  0  to  15 

percent  slopes. 
Corydon  very  rocky  clay  loam,  3  to  45  per- 
cent slopes,  moderately  eroded. 

Dekalb  and  Leetonia  very  stony  sandy  loams, 

0  to  25  percent  slopes. 
Dekalb  and  Leetonia  very  stony  sandy  loams, 

25  to  45  percent  slopes. 
Dekalb  and  Leetonia  very  stony  sandy  loams, 

45  to  60  percent  slopes. 
Dekalb  and  Lehew  very  stony  loams,  0  to  25 

percent  slopes. 
Dekalb  and  Lehew  very  stony  loams,  25  to  45 
percent  slopes. 

DufReld  extremely  rocky  silt  loam,  0  to  15 
percent  slopes. 

DufReld  silt  loam,  0  to  3  percent  slopes  

Duffield  silt  loam,  3  to  8  percent  slopes,  mod- 
erately eroded. 
Duffield  silt  loam,  8  to  15  percent  slopes,  mod- 
erately eroded. 
Duffield  silt  loam,  8  to  25  percent  slopes,  se- 
verely eroded. 
Duffield  silt  loam  15  to  25  percent  slopes, 

moderately  eroded. 
Duffield  very  rocky  silt  loam,  3  to  15  percent 
slopes. 

Duffield  very  rocky  silt  loam,  8  to  45  percent 
slopes,  moderately  eroded. 
See  footnotes  at  end  of  table. 


(2) 
(^) 


1-3 
1-3 

1-3 

0-3 

0-3 


(2) 

2-4 

(^) 

2-4 

(^) 

2-4 

(^) 

2-4 

(^) 

2-4 

(2) 

0-6 

(^) 

4-7 

(^) 

4-7 

(2) 

4-7 

(^) 

2-6 

(-) 

4-7 

0-6 

0-6 

Well-drained  to  somewhat  excessively  drained, 
shallow,  upland  soils  developed  in  residuum 
from  mica  schist.  Physical  properties  given 
are  for  Chandler  channery  silt  loam.  Chandler 
silt  loam  has  a  few  schist  fragments  in  the 
surface  horizon. 


Moderately  well  drained  soils  of  flood  plains,  of 
recent  alluvium  from  crystalline  rocks.  Phys- 
ical properties  given  are  for  Chewacla  silt 
loam.  The  gravelly  sandy  loam  is  SM 
throughout.  The  stony  silt  loam  is  about  20 
to  40  percent  stone.  Moderately  wet  to  sea- 
sonally very  wet. 

Well-drained,  deep  soils  of  flood  plains,  of  recent 
alluvium  from  crystalline  rocks.  Areas  are 
either  silt  loam  or  graveOy  loam.  Physical 
properties  given  are  for  silt  loam.  Gravelly 
areas  contain  20  to  30  percent  gravel  in  the 
ML  horizon. 

Well-drained,  shallow  to  moderately  deep,  up- 
land soils  developed  in  residuum  from  lime- 
stone. Physical  properties  given  are  for 
Corydon  clay  loam,  which  has  some  rock  out- 
crops. Rock  outcrops  cover  25  to  40  percent 
of  the  surface  of  the  very  rocky  clay  loam,  and 
40  to  90  percent  of  the  extremely  rocky  clay 
loam. 


Excessively  drained,  upland  soils  developed  in 
residuum  from  quartzitic  sandstone  (Dekalb), 
or  from  coarse-grained  sandstone  (Leetonia), 
or  from  acid  red  sandstone  (Lehew).  Physical 
properties  given  are  for  Dekalb.  Lehew  and 
Leetonia  generaUj'  have  less  coarse  skeleton, 
and  in  places  are  SM  instead  of  GM  to  bed- 
rock. 


Well-drained,  deep,  upland  soils  developed  in 
residuum  from  interbedded  shale  and  lime- 
stone. Physical  properties  given  are  for 
Duffield  silt  loam.  Rock  outcrops  cover  25 
to  40  percent  of  the  very  rocky  silt  loam,  and 
40  to  90  per  cent  of  the  extremely  rocky  silt 
loam.  Severely  eroded  soils  have  lost  the 
original  ML  surface  layer  and  are  CL 
throughout. 


WASHINGTON  COUNTY,  MARYLAND 

estimated  physical  properties — Continued 


89 


USDA  textural  class 


Engineering  classification 


Unified 


AASHO 


Percentage  passing 
sieve — 


No.  4 


No. 
10 


No. 
200 


Selected  characteristics  significant  in  engineering 


Range  in 
permeability 


Reaction 


Dispersion 


Shrink-swell 
potential 


Percent 


Percent 


Percent 


Inches  per  hour 


Channery  silt  loam  

Very  channery  silt  loam.. 


Silt  loam  

Gravelly  sandy  loam. 


ML  or  MH. 
GM  


A-4  or  A-5. 
A-2  


ML. 
SM. 


A-4. 
A-2. 


Silt  loam  

Gravelly  loam. 


ML. 
GM. 


A-4_ 
A-2- 


Clay  loam  

Hard  limestone. 


CL. 


A-6. 


80 
55 


100 
85 


100 
60 


100 


75 
35 


100 
65 


100 
45 


100 


65 
15 


75 
35 


70 
30 


85 


0.  2-2.  0 
0.  6-2.  0 


0.  2-0.  6 
0.  06-0.  6 


0.  6-2.  0 
2.  0-6.  3 


0.  06-0.  6 


4.  5-6.  0 
4.  0-5.  0 


4.  5-5.  5 
4.  0-4.  5 


6.  1-6.  5 
5.  1-5.  5 


6.  1-6.  5 


Moderate  to 
high- 


Moderate. 
Moderate. 


High. 


Moderate. 


Very  stony  sandy  loam  

Hard  quartzitic  sandstone. 


GM. 


A-1  or  A-2. 


30 


20 


15 


2.  0-6.  3 


4.  0-5.  0 


High. 


Silt  loam  

Silty  clay  loam. 


ML_ 
CL. 


A-4  

A-6  or  A-7. 


100 
100 


95 
95 


70 
80 


0.  6-2.  0 
0.  06-0.  6 


6.  1-7.  3 
5.  6-7.  3 


Moderate. 


Low  to 
moderate. 


Low. 
Low. 


Low. 
Low. 


Low. 
Low. 


Moderate. 


None. 


Low. 

Moderate. 


90 


SOIL  SURVEY  SERIES   1959,  NO.  17 

Table  6. — Brief  description  of  soils  and  their 


Soil  name 


Depth  to 
season- 
ally high 
water 
table 


Depth  to 
bedrock 


Brief  description  of  site  and  soil 


Dunmore  cherty  silt  loam,  3  to  8  percent 

slopes,  moderately  eroded. 
Dunmore  cherty  silt  loam,  8  to  15  percent 

slopes,  moderately  eroded. 


Dunning  and  Mclvin  silty  clay  loams. 


Edgemont  and  Laidig  channery  loams,  0  to 

12  percent  slopes. 
Edgemont  and  Laidig  channery  loams,  5  to 

20  percent  slopes,  moderately  eroded. 


p]dgemont  and  Laidig  channery  loams,  20  to 

35  percent  slopes,  moderately  eroded. 
Edgemont  and  Laidig  channery  loams,  35  to 

60  percent  slopes,  moderately  eroded. 
Edgemont  and  Laidig  very  stony  loams,  0  to 

5  percent  slopes. 
Edgemont  and  Laidig  very  stony  loams,  5  to 

35  percent  slopes. 
Edgemont  and  Laidig  very  stony  loams,  35  to 

60  percent  slopes. 

Elliber  cherty  loam,  5  to  12  percent  slopes, 

moderately  eroded. 
Elliber  cherty  loam,  12  to  25  percent  slopes, 

moderately  eroded. 
Elliber  cherty  loam,  25  to  45  percent  slopes, 

moderately  eroded. 
Elliber  cherty  loam,  45  to  55  percent  slopes... 


Etowah  gravelly  loam, 
Etowah  gravelly  loam, 

moderately  eroded. 
Etowah  gravelly  loam, 

moderately  eroded 
Etowah  gravelly  loam, 

moderately  eroded. 
Etowah  silt  loam,  0  to 
Etowah  silt  loam,  3 

moderately  eroded. 
Etowah  silt  loam,  8  to  15  percent  slopes, 

moderately  eroded. 


0  to  3  percent  slopes.  . 
3  to  8  percent  slopes, 

8  to  15  percent  slopes, 

15  to  25  percent  slopes, 

3  percent  slopes  

to  8  percent  slopes, 


Fauquier   channery  loam,   0   to   5  percent 
slopes. 

Fauquier  channery  loam,  5  to   10  percent 

slopes,  moderately  eroded. 
Fauquier  channery  loam,  10  to  20  percent 

slopes,  moderately  eroded. 
Fauquier  channery  loam,  20  to  35  percent 
slopes,  moderately  eroded. 

Fauquier  silt  loam,  0  to  3  percent  slopes  

Fauquier  silt  loam,  3  to  10  percent  slopes, 

moderately  eroded. 
Fauquier  silt  loam,  10  to  20  percent  slopes, 

moderately  eroded. 
Fauquier  silt  loam,  shallow,  3  to  20  percent 

slopes,  moderately  eroded. 
Fauquier  verj'  stony  loam,  5  to  35  percent 
slopes. 

See  footnotes  at  end  of  table. 


Feet 


0-1 


Feet 

5-8 

5-8 


(') 


3-5 

\  J 

3-5 

(') 

3-5 

(') 

3-5 

(') 

3-5 

{') 

3-5 

(') 

3-5 

(') 

o~0 

(') 

3-5 

(') 

3-5 

(') 

3-5 

4  + 

(') 

4  + 

(') 

4  + 

(') 

4  + 

(') 

4  + 

(') 

44- 

(') 

5  + 

5  + 

5  + 

{') 

5  + 

(') 

5  + 

(') 

5  + 

(') 

5  + 

{') 

2 

(') 

1-6 

Well-drained,  deep,  upland  soils  developed  in 
residuum  from  cherty  limestone. 


Either  poorly  drained  (Melvin)  or  very  poorly 
drained  (Dunning)  soils  of  flood  plains,  of 
recent  alluvium  from  limestone  areas.  Physi- 
cal properties  given  are  for  Dunning;  very  wet; 
fairly  frequently  flooded. 

Either  Edgemont  channery  loam  or  Laidig  chan- 
nery loam.  Properties  and  depths  given  are 
for  Edgemont:  Well-drained  upland  soils  de- 
veloped in  residuum  from  quartzitic  sand- 
stone. Very  stony  tj'pes  in  some  places  con- 
tain as  much  as  40  to  50  percent  stones. 


Well-drained  upland  soils  developed  in  residuum 
from  cherty  limestone.  There  are  occasional 
outcropping  ledges  of  limestone. 


Well-drained,  deep  soils  on  high  terraces,  of 
very  old  alluvium  from  limestone  areas. 
Physical  properties  given  are  for  gravelly 
loam;  silt  loam  is  nearly  free  of  gravel  in  the 
uppermost  3  feet  of  the  surface  layer. 


Well-drained,  deep,  upland  soils  developed  in 
residuum  from  metabasalt.  Physical  prop- 
erties given  are  for  channery  loam;  silt  loam 
has  the  same  essential  properties  but  con- 
tains fewer  stone  fragments;  the  shallow 
phase  is  about  2  feet  deep  over  bedrock; 
very  stony  loams  contain  40  to  50  percent 
stones,  and  are  variable  in  depth  to  bedrock. 


WASHINGTON  COUNTY,  MARYLAND 


01 


estimated  physical  properties — Continued 


USD  A  texluial  class 


Cherty  silt  loam. 


Cherty  silty  clay  loam. 
Clay  


Silty  clay  loam  to  fine 
sandy  clay. 

Gravelly    coarse  sandy 
loam. 


Channery  loam  

Channery  sandy  clay  loam. 

Hard    quartzitic  sand- 
stone  


Engineering  classification 


Unified 


ML- 

CL. 
CH- 


CL. 
SM- 


SM. 
SC- 


Cherty  loam  

Cherty  silt  loam  

Gravelly  loam  

Gravelly  silty  clay  loam 
Very  gravelly  coarse 
sandy  clay. 


Channery   loam   or  silt 
loam. 

Channery  silty  clay  loam.. 
Silt  loam  


AASHO 


A-4. 

A-6. 
A-7- 


A-6  or  A- 7. 

A-2  


A-2  or  A-4. 
A-4  or  A-6. 


Percentage  passing 
sieve — 


No.  4 


Percent 
85 

70 
85 


100 
80 


80 
85 


SM. 
ML 

ML 
CL. 
GC. 


ML  or  MH 


CL.. 
MH. 


A-4 
A-4 

A-4 
A-6 
A-4 


A-4  or  A-5. 

A-6  or  A-7. 
A-5  or  A-7- 


90 
85 


85 
90 
65 


No. 
10 


Percent 
75 

65 
80 


100 
50 


55 
65 


75 
75 


75 
80 
55 


90 

90 
95 


85 

85 
90 


No. 
200 


Percent 
65 

55 
75 


80 
30 


40 
50 


Selected  characteristics  significant  in  engineering 


Range  in 
permeability 


Inches  per  hour 
0.  6-2.  0 

0.  2-0.  6 
0.  06-0.  6 


0.  06-0.  2 
6.  3  + 


0.  6-6.  3 
0  2-2.0 


40 
55 


50 
60 
45 


60 

75 
85 


0.  6-2.  0 
0.  6-2.  0 


0.  6-2.  0 
0.  2-0.  6 
0.  2-0.  6 


0.  2-2.  0 

0.  06-0.  6 
5.  1-6.  0 


Reaction 


pll 

5.  1-6.  5 

6.  1-6.  5 
4.  6-5.  5 


6.  6-7.  8 

7.  4-7.  8 


5.  1-6.  5 
5.  1-5.  5 


5.  6-6.  5 
5.  1-5.  5 


5.  6-6.  5 

6.  6-7.  3 
6.  6-7.  8 


5.  6-7.  0 

5.  1-6.  5 
5.  1-6.  0 


Dispersion 


Low  to 

moderate. 
Moderate.. - 
Low  


Moderate  to 
high. 


Moderate  

Low  to 
moderate. 


High  

High  to 
moderate. 

Moderate... 
Low  


Moderate 

Low  

High  


Sh  rink-swell 
potential 


Low. 

Moderate. 
Moderate. 


Moderate  to 

high. 
None* 


Low. 

Low. 


Low. 
Low. 


Low. 

Moderate. 
Moderate. 


Low  to  moder- 
ate. 
Moderate. 
Moderate. 


92 


SOIL  SURVEY  SERIES   1959,  NO.  17 

Table  6. — Brief  description  of  soils  and  their 


Soil  name 


Depth  to 
season- 
ally high 
water 
table 


Depth  to 
bedrock 


Brief  description  of  site  and  soil 


Frankstovvn  and  DufRold  channery  silt  loams, 

0  to  3  percent  slopes. 
Frankstovvn  and  Duflicld  channery  silt  loams, 

3  to  8  percent  slojjes,  moderately  eroded. 
Frankstovvn  and  DufTield  channery  silt  loams, 

0  to  8  percent  slopes,  severely  eroded. 
Frankstovvn  and  Diif field  channery  silt  loams, 

8  to  15  percent  slopes,  moderately  eroded. 
Frankstovvn  and  Duffield  channery  silt  loams, 

8  to  15  percent  slopes,  severely  eroded. 
Frankstovvn  and  Duffield  chaimery  silt  loams, 
15  to  25  percent  slopes,  moderately  eroded. 
Frankstovvn  and  Duffield  channery  silt  loams, 

15  to  25  percent  slopes,  severely  eroded. 
Frankstovvn  and  Duffield  channery  silt  loams, 
25  to  45  percent  slopes,  moderately  eroded. 
Frankstovvn  and  Duffield  channery  silt  loams, 
25  to  45  percent  slopes,  severely  eroded. 

Frederick  cherty  silt  loam,  0  to  8  percent 

slopes,  moderately  eroded. 
Frederick  cherty  silt  loam,  8  to  15  percent 

slopes,  moderately  eroded. 
Frederick  cherty  silt  loam,  8  to  15  percent 

slopes,  severely  eroded. 
Frederick  cherty  silt  loam,  15  to  25  percent 
slopes,  moderately  eroded. 

Hagerstovvn  clay  loam,  0  to  3  percent  slopes.. 
Hagerstovvn  clay  loam,  0  to  8  percent  slopes, 

moderately  eroded. 
Hagerstovvn  clay  loam,  3  to  8  percent  slopes, 

severely  eroded. 
Hagerstovvn  clay  loam,  8  to  15  percent  slopes, 

moderately  eroded. 
Hagerstovvn  clay  loam,  8  to  15  percent  slopes, 

severely  eroded. 
Hagerstovvn   clay   loam,    15   to  25  percent 

slopes,  moderatel}'  eroded. 
Hagerstovvn  clay  loam,    15  to  25  percent 

slopes,  severely  eroded. 
Hagerstovvn  extremely  rocky  silt  loam,  0  to 

25  percent  slopes,  moderately  eroded. 
Hagerstovvn  extremely  rocky  silty  clay  loam, 

0  to  25  percent  slopes,  moderately  eroded. 
Hagerstovvn  extremely  rocky  soils,  25  to  45 
percent  slopes. 

Hagerstow^n  silt  loam,  0  to  3  percent  slopes  

Hagerstovvn  silt  loam,  0  to  8  percent  slopes, 

moderately  eroded. 
Hagerstovvn  silt  loam,  8  to  15  percent  slopes, 

moderately  eroded. 
Hagerstovvn  silt  loam,  15  to  25  percent  slopes, 

moderately  eroded. 
Hagerstovvn  silty  clay  loam,  0  to  3  percent 
slopes. 

Hagerstovvn  silty  clay  loam,  0  to  8  percent 

slopes,  moderately  eroded. 
Hagerstovvn  silty  clay  loam,  8  to  15  percent 

slopes,  moderately  eroded. 
Hagerstovvn  siltj'  clay  loam,  15  to  25  percent 

slopes,  moderately  eroded. 
Hagerstovvn  v'ery  rocky  silt  loam,  3  to  15  per- 
cent slopes,  moderately  eroded. 
Hagerstovvn  very  rocky  silt  loam,  15  to  45 

percent  slopes,  moderately  eroded. 
Hagerstovvn  verj'  rocky  silty  clay  loam,  3  to  15 

percent  slopes,  moderately  eroded. 
Hagerstovvn  very  rocky  silty  clay  loam,  8  to 
15  percent  slopes,  severely  eroded. 
See  footnotes  at  end  of  table. 


Feet 

(») 
(') 
(0 
(») 
(') 
0) 
(') 

(') 

{') 
{') 
C) 

(') 
i") 

(») 

(») 

(»; 
{') 
(') 
(^) 
0) 


(^) 
(') 

(') 
(») 
(') 
(') 
(») 
{') 


Feet 
0-5  + 

0-5  + 

2-4 

0-5  + 

2-4 

0-5  + 

2-4 

0-  5  + 
2-4 

4-6 
4-6 
2-5 
4-6 

2-7 
2-7 

1-  6 

2-  7 

1-  6 

2-  7 

1-  6 
0-7 
0-7 
0-5 

2-  7 
2-7 

2-7 

2-7 

2-7 

2-7 

2-7 

2-7 

0-7 

0-7 

0-7 

0-6 


Either  Frankstovvn  or  Duffield  channery  silt 
loam.  Physical  properties  given  are  for 
Frankstovvn  channery  silt  loam.  DufTield 
channery  silt  loam  fias  physical  properties 
like  those  given  for  Duffield  silt  loam,  except 
that  it  contains  more  coarse  skeleton.  Se- 
verely eroded  soils  will  be  CL  from  surface  to 
parent  material. 


Well-drained,  deep,  upland  soils  developed  in 
residuum  from  cherty  limestone.  Severely 
eroded  soils  have  lost  the  original  ML  horizon 
and  are  CL  almost  to  the  surface. 


Well-drained  upland  soils  developed  in  residuum 
from  fairly  pure,  massive  limestone.  Very 
irregular  depth  to  bedrock,  with  occasional  to 
extremely  abundant  outcrops  of  hard  lime- 
stone. Physical  properties  given  are  for  the 
silt  loam.  The  clay  loams  have  a  CL  surface 
layer.  Limestone  outcrops  cover  40  to  90 
percent  of  the  surface  of  the  extremely  rocky 
phases,  and  25  to  40  percent  of  the  very  rocky 
phases.  Severely  eroded  soils  have  lost  most 
of  the  original  surface  layer,  and  have  occa- 
sional to  frequent  gullies. 


WASHINGTON  COUNTY,  MARYLAND 

estimated  physical  properties— Continued 


93 


USDA  textural  class 


Channery  silt  loam  

Channery  silty  clay  loam. 

Fragment(!d  shale  

Shaly  cherty  limestone.  . 


Cherty  silt  loam  

Cherty  silty  clay  loam  

Cherty  clay  loam  to  clay. 


Silt  loam  

Silty  clay  loam. 


Silty  clay  to  clay.. 

Silty  clay  loam  

Massive  limestone. 


Engineering  classification 


Unified 


ML. 
CL. 
GM. 


ML. 
CL. 
CH. 


ML. 
CL. 


CH. 
CL. 


AASIIO 


A-4. 
A-6- 
A-2. 


A-4. 
A-6. 
A-7. 


A-4. 
A-6. 

A-7. 
A-6. 


Percentage  passing 
sieve — 


No.  4 


Percent 
85 

70 

25 


85 
95 
95 


98 
100 

100 
95 


No. 
10 


Percent 
80 

65 

20 


80 
85 
90 


95 
100 

100 
90 


No. 
200 


Percent 
60 

55 

10 


60 
70 
80 


75 
85 

90 
80 


Selected  characteristics  significant  in  engineering 


Range  in 
permeability 


Tnchet  per  hour 
0.  6-2.  0 

0.  2-0.  6 


0.  6-2.  0 
0.  2-0.  6 
0.  06-0.  2 


0.  6-2.  0 
0.  06-0.  6 

0.  06-0.  2 
0.  06-0.  2 


Reaction 


5.  6-6.  0 
5.  1-6.  0 
5.  6-6.  0 


5.  1-6.  5 
4.  0-5.  0 

6.  6-7.  3 


5.  1-7.  3 
5.  6-6.  0 

5.  6-6.  5 
5.  6-6.  5 


DisiKTsioii 


Low  to  mod- 
erate. 

Low  to  mod- 
erate. 


Moderate  to 

high. 
Low  to 

moderate. 
High  


Moderate... 
Low  to 
moderate. 

Low  

High  


Slirink-swoU 
potential 


Low. 

Moderate. 
None. 


Low. 

Moderate. 
High. 


Low. 

Moderate. 

High. 
Moderate. 


94  SOIL  SURVEY  SERIES   1959,  NO.  17 


Table  6. — Brief  description  of  soils  and  their 


Depth  to 

Depth 

season- 

from 

Map 

Soil  name 

ally  high 

Depth  to 

Brief  description  of  site  and  soil 

surface 

symbol 

water 

bedrock 

(typical 

table 

profile) 

Feet 

Feet 

Inches 

UI  DO 

n  n 

llazel  cnaiincry  silt  loam,  0  to  lu  percent 

(■*) 

1  o 

Very  shallow,  excessively  drained,  upland  sous 

0-24 

slopes,  moderately  eroded. 

developed    in    residuum    from    liard,  very 

TTazel  channery  silt  loam,  10  to  20  percent 

{') 

1  O 
1  —Z 

resistant  phyllite.    The  severely  eroded  soils 

24  + 

slopes,  moderately  eroded. 

consist  of  about  12  inches  of  soil  over  bedrock. 

HnC3 

Hazel  channery  silt  loam,  10  to  20  percent 

{') 

1 

slopes,  severely  eroded. 

HnD2 

Hazel  channery  silt  loam,  20  to  30  percent 

{') 

1-2 

slopes,  moderately  eroded. 

HnD3 

Hazel  channery  silt  loam,  20  to  30  percent 

0) 

1 

slopes,  severely  eroded. 

HnE 

Hazel  channery  silt  loam,  30  to  45  percent 

(') 

1-2 

slopes. 

noD 

TT-  1  c  1  1             11     1           n  *     c              *  1 

iiigiineld  gravelly  loam,  0  to  o  percent  slopes. 

f2\ 

(V 

T~>                   U  A      •      A           1       ^         -1        1         1         J  • 

JJeep,  well-drainea,  upland  soils  developed  in 

U— OD 

noDZ 

Highficld   grav(^lly   loam,   5   to    10  percent 

A  A 

residuum    from    metabasalt    or  greenstone. 

slopes,  moderately  eroded. 

Phy.sical  j^roperties  given  are  for  the  very 

OA 

OD— 0^ 

n  01^/ 

Highfield  gravelly  loam,   10  to  20  percent 

{') 

stony  loam,  which  has  20  to  40  perc(*nt  of  the 

slopes,  moderately  eroded. 

surface  area  occupied  by  ston(!s  or  boulders. 

HoE2 

Highfield  gravelly  loam,  20  to  35  percent 

0) 

4-6 

The  gravelly  loam  is  essentially  the  same, 

slopes,  moderately  eroded. 

except  that  it  is  gravelly  instead  of  very 

HpB 

Highfield  very  stony  loam,  0  to  5  percent 

{') 

4-6 

stony. 

slopes. 

HpD 

Highfield  very  stony  loam,  5  to  30  percent 

{') 

4-6 

slopes. 

HpE 

Highfield  very  stony  loam,  30  to  45  percent 

(') 

4-6 

slopes. 

U  A 

n  rA 

Holston  gra^'(Miy  loam,  0  to  o  percent  slopes  

4  + 

('J 

Well-drained,  deep  soils  on  high  terraces,  of  very 

A    O  /l 

Holston  gra\'elly  loam,  0  to  8  percent  slopes, 

A  1 

4  + 

v) 

old  alluvium  from  shale  and  sandstone  areas. 

moderatelj'  eroded. 

Physical  properties  given  are  for  the  silt  loam. 

24-37 

n  rv^z 

Holston  gravelly  loam,  8  to  15  percent  slopes, 

A  t 

4  + 

( } 

The  gravelly  loam  is  ess(?ntially  the  same. 

07    AO  _L 

moderately  eroded. 

except  that  the  surface  layer  contains  about  20 

u  .-no 
n  rUz 

Holston   gravelly   loam,    15   to   25  percent 

4  + 

percent    waterworn    gravel.    The  gravelly 

slopes,  moderately  eroded. 

sandy  loam  is  SM  throughout  and  contains 

n  rUi 

Holston  gravelly  loam,  8  to  25  percent  slopes, 

4  + 

(v 

considerable   gravel.    Severely   eroded  soils 

severely  eroded. 

have  lost  up  to  half  the  original  solum. 

W  .-FO 
n  rt-Z 

Holston  gravelly  loam,  25  to  45  percent  slopes, 

A  1 

4  + 

moderately  eroded. 

U  e  R 

nsD 

Holston  gravelly  sandy  loam,  3  to  8  percent 

4  + 

r) 

slopes. 

HsC2 

Holston  gravelly  sandy  loam,  3  to  15  percent 

4  + 

(') 

slopes,  moderately  eroded. 

HsC3 

Holston  gravelly  sandy  loam,  8  to  15  percent 

4  + 

(') 

slopes,  severely  eroded. 

HtA 

Holston  silt  loam,  0  to  3  percent  slopes  

4+ 

0) 

HtB2 

Holston  silt  loam,  3  to  8  percent  slopes, 

4  + 

(') 

moderatel}'  eroded. 

xi-oisLuii  sub  loam,   o  lo   id  percent  slopes. 

4  + 

en 
\ ) 

moderately  eroded. 

Hu 

Huntington  fine  sandv  loam. 

4 

(') 

Well-drained,  deep  soils  of  flood  plains  and  up- 

0-48-1- 

Hv 

Huntington  gravelly  loam 

4 

(') 

land  depressions,  of  recent  alluvium  from  areas 

Hw 

Huntington  silt  loam. 

4 

(') 

of  limestone-derived  soils.  Physical  properties 

Hx 

Huntington  silt  loam,  local  alluvium  . 

4 

(') 

given  are  for  the  silt  loam.    The  gravelly  loam 

contains  about  20  percent  waterworn  gravel. 

The  fine  sandy  loam  is  SM  or  ML  throughout. 

La  A 

T    -A-               11     1  nil 

Laidig  gravelly  loam,  0  to  3  percent  slopes  

Well-drained  soils  developed  in  gravelly  to  stony 

LaB2 

Tjaidiff  f?r.TVpllv  loRm    ^  to  8  nprfpnt  stnnps 

84- 

cnllnvijil    dpnrmit^    nf    mifirtzitic  sandstono 

moderately  eroded. 

materials.    Physical  properties  given  are  for 

38-90-1- 

LaC2 

Laidig  gravelly  loam,  8  to  15  percent  slopes. 

8  + 

(') 

the  gravelly  loam.    The  very  stony  loam  has 

moderately  eroded. 

up  to  40  percent  of  the  surface  occupied  by 

LaD2 

Laidig  gravelly  loam,  15  to  25  percent  slopes, 

8  + 

(') 

stones. 

moderately  eroded. 

LbD 

Laidig  very  stony  loam,  8  to  25  percent  slopes.. 

8  + 

0) 

LbE2 

Laidig  very  stony  loam,   15  to  45  percent 

8  + 

(') 

slopes,  moderately  eroded. 

See  footnotes  at  end  of  table. 


VVASllINUTON   COUNTY,  MAKVLAXI) 


9.") 


estimated  physical  properties — Continued 


USDA  Icxtiinil  fhiss 


Channprj-  ^ilt  loiuii. 
Hard  pli\  llite  


Loam  to  liuht  silt  loam. 


Grave^lly  silt  loam. 
Hard  metabasalt.. 


Silt  loam. 


Gravelly  silty  clay  loam. 
Very  gravelly  sandy  clay 
loam. 


Silt  loam. 


Gravelly  fine  sandy  loam 
Fine  sandv  clav  loam  


Engineering  classification 


Unified 


GM. 


ML.. 

Gi\r. 


ML 

CL. 
GC. 


AASHO 


A-2. 


A-4_ 
A-2. 


A-4 

A-6 
A-2 


ML. 


SM. 
SC. 


A-4. 


A-2. 
A-2. 


Percentage  passing 
sieve — 


No.  4 


Percent 
50 


95 
60 


No. 
10 


Percent 
40 


90 
45 


95 

80 
60 


100 


80 
100 


85 

75 
45 


No. 
200 


Percent 
30 


65 
30 


65 

60 
25 


Selected  characteristics  significant  in  engineering 


Range  in 
permeability 


Indies  per  hour 

0.  6-6.  3 


0.  2-2.  0 
0.  2-0.  6 


0.  6-2.  0 

0.  2-0.  6 
0.  2-0.  6 


100 


70 
95 


80 


30 
35 


Reaction 


pii 
5.  1-6.  5 


4.  5-5.  5 

5.  1-5.  5 


4.  5-5.  5 

4.  5-5.  0 
4.  0-4.  5 


0.  2-2.  0 


0.  2  6.  3 

0.  2-0.  (i 


Dispersion 


High  to 
moderate. 


Low  to  high. 
High  


High  to 
moderate. 

Low  

High  


6.  6-7.  3 


4.  5-5.  5 
4.  5-5.  0 


High  to  mod- 
erate. 


High  to  mod- 
erate. 
Moderate  


Shrink-swell 
potential 


Low. 


Low  to 

moderate. 
Low. 


Low. 

Moderate. 
Low. 


Low. 


Low. 
Low. 


599553—62  7 


96 


SOIL  SURVEY   SERIES    1959,  NO.  17 

Table  6. — Brief  description  of  soils  and  their 


svinbol 


Roil 


Landisburp;  cherty  silt  loam,  3  to  8  percent 

slopes,  moderately  eroded. 

Landisbvirfi  cherty  silt  loam,  8  to  25  i)erc<Mit 

slojjes,  moderately  eroded. 

Largeiit  silt  loam   _   


Leadvale  gravelly  silt  loam,  0  to  3  percent 
slopes. 

Leadvale  gravelly  silt  loam,  3  to  8  i)erceiit 
slopes,  moderateU'  erodefl. 

Lindside  silt  loam   _  .   

Liiuiside  silt  loam,  local  alluvium  


LcB2 
LcD2 

Le 

LgA 
LgB2 

Lm 
Ln 


LoB2 

LoC2 

LoC3 

LsB 
LsB2 

LsC2 

LsC3 

LsD2 

LsD3 

LsE2 

LsE3 

LsF 

LtB 

LtC2 

LtC3 

LtD2 

LtD3 

LtE2 

Me 

MeB2        Monongahela  gravelly  loam,  3  to  8  percent 
slopes,  moderately  eroded. 
lgC2        Monongahela  gravelly  loam,  8  to  15  percent 
slopes,  moderately  eroded. 
MhA  Monongahela  silt  loam,  0  to  3  percent  slopes_. 

MhB2        Monongahela  silt  loam,  3  to  8  percent  slopes, 

moderately  eroded. 
MhC2        Monongahela  silt  loam,  8  to  15  percent  slopes, 

moderately  eroded. 
MhD2        Monongahela  silt   loam,    15  to   25  percent 
slopes,  moderately  eroded. 

See  footnotes  at  end  of  table. 


T.itz  channerv  loam,  3  to  10  percent  slopes, 
moderately  eroded. 

Tiitz  channery  loam,  10  to  20  percent  slopes, 
moderately  eroded. 

Litz  channery  loam,  10  to  20  percent  slopes, 
severely  eroded. 

T.iitz  shaly  loam,  0  to  10  j)ercent  slopes  

Litz  shaly  loam,  3  to  10  percent  slopes, 
moderateh'  eroded. 

Litz  shaly  loam,  10  to  20  percent  slopes, 
moderatel\'  eroded. 

lAtz  shaly  loam,  10  to  20  percent  slopes, 
severely  eroded. 

Litz  shaly  loam,  20  to  30  i)ercent  slopes,  mod- 
erately eroded. 

Litz  shaly  loam,  20  to  30  percent  slopes,  se- 
verely eroded. 

Litz  shaly  loam,  30  to  45  i)ereent  slopes,  mod- 
erately eroded. 

Litz  shaly  loam,  30  to  45  percent  slopes,  se- 
verely eroded. 

Litz  shaly  loam,  45  to  60  percent  slopes  

Litz-Teas  channery  silt  loams,  0  to  8  percent 
slopes. 

Litz-Teas  channery  silt  loams,  3  to  15  percent 
slopes,  moderately  eroded. 

Litz-Teas  channery  silt  loams,  8  to  15  percent 
slopes,  severely  eroded. 

Litz-Teas  channery  silt  loams,  15  to  25  per- 
cent slopes,  moderately  eroded. 

Litz-Teas  channery  silt  loams,  15  to  25  per- 
cent slopes,  severely  eroded. 

Litz-Teas  channery  silt  loams,  25  to  45  per- 
cent slopes,  moderatel}-  eroded. 

Mehin  silt  loam  


Depth  to 
season- 
ally highD 
water 
table 


Feel 
3  1 


epth  to 
bedrock 


Feet 

(■) 


3  ] 

2 

(') 

(') 

3  2 

(') 

(') 

1-2 

(') 

\  ) 

1  -'> 

if\ 

Kv 

1  •> 

1-z 

{') 

1 

(^) 

1-2 

C-) 

1-2 

{') 

1-2 

{') 

1  ■ 

(') 

1-2 

{') 

1 

{') 

1-2 

{') 

1 

(') 

1-2 

(') 

1-2 

{') 

1-2 

{') 

1 

{') 

1-2 

{') 

1 

{') 

1-2 

0-1 

(') 

3  2 

(') 

3  2 

(•) 

3  2 

(') 

3  2 

(■) 

3  2 

(') 

3  2 

0) 

Brief  descri|)lion  of  site  and  soil 


Moderately  well  drained  soils  developed  in 
colluvial  deposits  of  cherty  limestone  material. 
Moderately  wet. 

Moderately  well  drained  soils  of  flood  plains,  of 
recent  alluvium  from  acid  red  shale  and  sand- 
stone material.    Moderately  wet. 

Moderately  well  drained  soils  developed  in 
gravelly  colluvial  deposits  of  acid  shale 
material.    Moderately  wet. 


Moderately  well  drained  to  somewhat  poorly 
drained  soils  of  flood  plains  and  upland 
depressions,  of  recent  alluvium  from  limestone- 
derived  soils.  Moderately  wet;  occasionally 
flooded. 

Somewhat  excessively  drained  to  excessively 
drained,  sluillow  upland  soils  developed  in 
residuum  from  limy  shale,  or  sometimc^s 
limestone.  Physical  properties  given  are  for 
Litz  shaly  loam.  The  channery  loams  contain 
large,  flat  fragments  of  coarse  skeletal 
material.  Severely  eroded  soils  have  lost  at 
least  half  of  the  original  soil  material  above 
bedrock. 


These  areas  are  mixtures  of  Litz  channery  silt 
loam  and  Teas  channery  silt  loam  that  could 
not  be  separated  on  the  maps  at  the  scale 
used.  Physical  properties  given  are  for  Teas 
channery  silt  loam.  The  Teas  soils  are  some- 
what excessively  drained  to  excessively 
drained  upland  soils  developed  in  residuum 
from  lim.v  shale  and  sandstone.  Severely 
eroded  soils  have  lost  at  least  half  of  the  orig- 
inal soil  material  above  bedrock. 


Poorly  drained  soils  of  flood  plains,  of  recent 
alluvium  from  limestone-derived  soils.  Very 
wet;  occasionally  flooded. 

Moderately  well  drained  soils  of  high  terraces, 
of  very  old  alluvium  from  acid  shale  and  sand- 
stone materials.  Physical  properties  given 
are  for  the  gravelly  loam.  The  silt  loam 
contains  very  little  gravel  above  a  depth  of 
about  50  inches. 


WASHINGTON  COUNTY,  MARYLAND 


!i7 


estimated  physical  properties — Continued 


USDA  tcxiuinl  class 


Cherty  silt  loam  

Cheity  clay  loam  to  clay 

Silt  loam  

Fine  sandy  loam  

Gravelly  silt  loam  

Channery  silty  clay  loam. 

Silt  loam  

Gravelly  loam  

Shaly  loam  

Very  shaly  silt  loam  

Shale  and  some  limestone 


l']n"iii('('rin":  classificat ion 


Unified 


Channerv  silt  loam. 


Fragmented    shale  and 

sandstone. 
Hard  shale  and  sandstone. 


Silt  loam  

Silty  clay  loam  

Gravelly  loam  

Gravelly  silty  clay  loam 
Very  gravelly  loam  


ML  

CL  or  CH. 

ML  

SM  


AASHO 


ML_ 
CL. 


ML, 
GM. 


ML_ 
GM. 


ML  

GM  to  GP_ 


ML. 

CL. 

ML. 
CL. 
GM 


A-4  

A-6  or  A-7. 

A-4  

A-2  


A-4. 
A-6. 


A-4. 
A-2. 


A-4. 
A-2_ 


A-4  

A-2  or  A-1. 


A-4 

A-6 

A-4 
A-6 
A-2 


P(TC(;iitage  passing 
sieve — 


No.  4 


Percent 
80 

75 


100 
100 


85 
80 


55 

85 
60 


80 
25 


100 

100 

80 
80 
55 


No. 
10 


Percent 
70 

70 


95 
95 

75 
75 


95 
40 


80 
45 


75 
15 


100 

100 

70 
75 
40 


No. 
200 


Percent 
55 

05 

60 
25 

60 
65 


80 
25 


55 
30 


50 
10 


80 

85 

55 
60 
25 


Sclcclid  (  iKir.ii  lcrislics  f-i((nificaiil  in  cngifieeriiig 


Range  in 
permeability 


Inches  per  hour 
0.  06-0.  6 

0.  02-0.  2 


0.  2-2.  0 
0.  2-0.  6 

0.  2-2.  0 
0.  02-0.  2 


0.  06-0.  6 
0.  06-0.  6 


0.  6-2.  0 
0.  6-2.  0 


Reaction 


pll 
4.  5-5.  5 

4.  5-5.  0 


Dispersion 


5. 

6- 

6. 

5 

5. 

6- 

6. 

0 

4. 

5- 

-5. 

5 

4. 

5- 

-5. 

5 

6.  1-7.  9 

7.  9-8.  4 


4.  5-5.  5 

5.  1-5.  5 


0.  6-2.  0 


5.  6-6.  5 


0.  2-0.  6 

0.  06-0.  2 

0.  2-0.  6 
0.  02-0.  06 
0.  2-0.  6 


7.  4-8.  4 

7.  4-8.  4 

5.  6-6.  0 
4.  5-5.  0 
4.  0-4.  5 


Low  to 

moderate. 
Low  


High. 
High. 


Moderate.. - 
Low  to 
moderate. 


High. 
High. 


High  to 

moderate. 
Moderate  


High  to 
moderate. 


Shriiik-swcil 
potent  iai 


High  to 

moderate. 
Low  

Low  to  high 

Low  

Moderate  


Low. 

High  to 
moderate 

Low. 

Low. 

Low. 

Moderate. 


Low. 
Low. 


Low. 
Low. 


Low. 


Low. 

Moderate. 
liOw. 

Moderate. 
Low. 


98 


SOIL  SURVEY  SERIES   1959,  NO.  17 

Table  6. — Brief  description  of  soils  and  their 


Soil  name 


Depth  to 
season- 
ally high 
water 
table 


Depth  to 
bedrock 


Brief  description  of  site  and  soil 


MxA 
MxB2 

MxC2 

MyE2 

MyF2 


Pg 
Ph 


Montevalk)  shaly  loam,  0  to  10  percent  slopes, 

inoderately  eroded. 
Montevallo  shaly  loam,    10  to  20  percent 

slopes,  moderately  eroded. 
Montevallo  shalj'  loam,    10  to  20  percent 

slopes,  severely  eroded. 
Montevallo  shaly  loam,   20  to  30  jjercent 

slopes,  mod(>rately  (M-oded. 
Montevallo  shaly  loam,   20  to  30  percent 

slopes,  severely  eroded. 

Murrill  frraxclly  loam,  0  to  3  percent  slopes. 
Miurill  gravelly  loam,  0  to  8  percent  slopes, 

moderately  eroded. 
Murrill  gravelly  loam,  8  to  15  [M'rcent  slopes, 

moderately  eroded. 
Murrill  gravelly  loam,  15  to  25  jiercent  slopes, 

moderately  eroded. 
Murrill  gravelly  loam,  8  to  25  percent  slopes, 

severely  eroded. 
Murrill  grav(>lly  loam,  25  to  45  percent  slopes, 

moderately  eroded. 
Murrill  gravelly  sandy  loam,  0  to  8  percent 

slopes. 

Murrill  gravelly  sandy  loam,  3  to  15  percent 
slopes,  mod(>rately  eroded. 

Muriill  gravelly  sandy  loam,  8  to  15  percent 
slopes,  severely  eroded. 

Murrill  gravelly  sandy  loam.  15  to  25  percent 
slopes,  moderately  eroded. 

Murrill  gravelly  sandy  loam,  15  to  25  percent 
slo|)es,  severely  erod(>d. 

Murrill  silt  loam,  0  to  3  percent  slopes  

Murrill  silt  loam,  t)  to  8  percent  slopes,  mod- 
erately eroded. 

Murrill  silt  loam,  8  to  15  percent  slopes,  mod- 
erately eroded. 

Myersville  channery  loam,  0  to  3  percent 
slopes. 

Myersville  channery  loam,  3  to  10  percent 

slopes,  moderately  eroded. 
Myersville  channery  loam,  10  to  20  percent 

slopes,  moderately  eroded. 
Myersville  channery  loam,  20  to  30  percent 

slopes,  moderately  eroded. 
Myersville  channery  loam,  30  to  45  percent 

slopes,  moderately  eroded. 
Myersville  channery  silt  loam,  3  to  10  percent 

slopes,  severely  eroded. 
Myersville  channery  silt  loam,  10  to  30  percent 

slopes,  severely  eroded. 

Myersville  silt  loam,  0  to  3  percent  slopes  

Myersville  silt  loam,  3  to  10  percent  slopes, 

moderately  eroded. 
Myersville  silt  loam,  10  to  20  percent  slopes, 

moderately  eroded. 
Myersville  very  stony  loam,  3  to  30  percent 

slopes,  moderately  eroded. 
Myersville  very  stony  loam,  30  to  55  percent 

slopes,  eroded. 

Philo  gravelly  sandj-  loam  

Philo  silt  loam  


Feet 

(') 

{') 
{') 
{') 
{') 

6  + 
6  + 

6  + 

6  + 

6  + 

6  + 

6  + 

6  + 

6  + 

6  + 

6  + 

6  + 
6  + 

6  + 

(') 

(') 

(') 

(') 

(') 

(') 

(') 

(') 
{') 

(') 

{') 

{') 

1 
1 


Feet 
1-2 

1-2 

1 

1-2 
1 

(*) 

i') 

(') 

(*) 

(*) 

(*) 

{*} 

(*) 

0) 

(*) 

(*)■ 

(*) 
(*) 

0) 

5-7 

5-7 

5-7 

5-7 

5-7 

3-6 

3-6 

5-7 
5-7 

5-7 

3-7 

3-7 

(') 
0) 


Very  shallow,  excessively  drained  upland  soils, 
developed  in  residuum  from  acid  shale.  Se- 
verely eroded  soils  have  lost  at  least  half  of 
the  original  soil  material  above  bedrock. 


Deep,  well-drained  soils  on  coUuvial  deposits  of 
sandstone  material  over  limestone  residuum 
or  limestone.  Physical  projx'rties  given  are 
for  the  silt  loam.  The  gravelly  loam  is  es- 
•senlially  the  same,  but  contains  about  15  to 
25  percent  gravel  in  the  solum.  The  gravelh' 
sandy  loam  will  be  a  gravelly  SM  through- 
out. Severely  eroded  soils  have  lost  mo.st  of 
the  original  surface  layer,  and  there  are  occa- 
sional gullies.  Rarely,  there  are  outcrops  of 
limestone. 


Well-drained,  deep,  upland  soils  developed  in 
residuum  from  greenstone  or  metabasalt. 
Physical  properties  given  are  for  the  silt  loam. 
The  channery  loam  and  the  channery  silt 
loam  are  essentially  the  same  as  the  silt  loam, 
except  that  they  contain  about  20  percent  flat 
stone  fragments  in  the  surface  layer.  The 
very  stony  loam  contains  20  to  40  percent 
stones  in  the  surface  layer.  Severely  eroded 
soils  have  lost  most  of  the  original  ML  surface 
layer,  and  have  occasional  to  frequent  gullies, 
some  verj-  deep. 


Somewhat  poorly  drained  soils  of  flood  plains, 
of  recent  alluvium  from  acid  sandstone  and 
shale  materials.  Wet  to  moderately  wet; 
occasionally  flooded.  Physical  properties 
given  are  for  the  silt  loam.  The  gravelly  sandy 
loam  will  be  SM  throughout. 


See  footnotes  at  end  of  table. 


WASHINGTON   COUNTY,  MARYLAND 


99 


estimated  physical  properties — Continued 


USDA  textural  class 


Engiiici'iiiig  classification 


Unified 


AASIIO 


Percentage  passing 
sieve — 


No.  4 


No. 
10 


No. 
200 


Selected  characteristics  signific^aiit  in  engineering 


Range  in 
permeability 


Reaction 


Dispersion 


Shrink-swell 
potential 


Shaly  loam. 
Hard  shale. 


GM. 


A-2. 


Percent 
55 


Percent 
45 


Percent 
30 


Inches  per  hour 
0.  6-6.  3 


pil 
5.  1-5.  5 


Low  to 
moderate. 


Low. 


Silt  loam  

Silty  clay  loam. 


ML. 
CL. 


A-4. 
A-6. 


95 
98 


90 
95 


65 
85 


0.  6-2.  0 
0.  06-0.  6 


Silt  loam  

Silty  clay  loam 
Clay  loam  


ML 

CL. 
CL. 


A-4  

A-6  

A-6  or  A-7. 


95 
98 
100 


90 
95 
100 


75 
85 
80 


0.  6-2.  0 
0.  2-0.  6 
0.  2-0.  6 


Silt  loam  

Silty  clay  loam. 


ML  

ML  or  CL.. 


A-4  

A-4  or  A- 


100 
100 


100 
100 


75 
80 


0.  2-0.  6 
0.  06-0.  2 


6.  1-6.  5 
5.  1-6  5 


Moderate  

Low  to  high. . 


Low. 

Moderate. 


5.  1-6.  0 

4.  5-5.  5 

5.  1-5.  5 


Moderate  

Low  to  high  _ 
High  


Low. 

Moderate. 
Moderate. 


5.  1-6.  0 
5.  1-5.  5 


High. 
High. 


Low. 

Moderate. 


100 


SOIL  SURVEY  SERIES   19  59,  NO.  17 

Table  6. — Brief  description  of  soils  and  their 


Soil  iiaiiu' 


Depth  to 
season 
ally  high 
water 
table 


Dept  h  to 
bedrock 


Brief  (lest'ri])t ion  of  site  and  soil 


Pope  fine  sandy  loam  

Pope  gravelly  loam.  

Pope  gravelly  sandy  loam. 

Pope  silt  loam  

Pope  stony  gravelly  loam 


Rolirersville  silty  clay  loam,  0  to  8  percent 
slopes,  moderately  erod(>d. 


gravelly  silt  loam,  thick  solum 
0  to  20  ])ercent  slo[)es,  moderately 

gravelly  silt  hiam,  thick  solum 
10  to  20  i)ei('('nt  slopes,  severely 

gravelly  silt  loam,  thick  solum 
20  to  ;U)  jiercent  slojjes. 

gravelly  silt  loam,  thick  solum 
20  to  45  jx'rcent  slojx-s,  moderately 


Talladega 

variant, 

ei-od(>d. 
Talladega 

\  ariant , 

eroded. 
Talladega 

variant, 
Talladega 

variant , 

eroded. 

Thurmont  gravelly  loam,  W  to  8  ])crcent  slopes, 

moderately  eroded. 
Thurmont  gravelly  loam,  8  to   15  percent 

slopes,  moderately  eroded. 

Trego  gravelly  silt  loam,  0  to  3  percent  slopes. 
Trego  gravelly  silt  loam,  :?  to  15  i)ercent  slopes, 
moderately  eroded. 


T\  ler  silt  loam,  0  to  8  percent  slopes. 


\\'arneis  loam,  0  to  8  jjercent  slopes. 


Waynesboro  gra\elly  loam,  0  to  3  percent 
slopes. 

Waynesboro  gravelly  loam,  0  to  8  percent 

slopes,  moderately  eroded. 
Waynesboro  gravell.v  loam.  8  to  15  percent 

slopes,  moderately  eroded. 
Waynesboro  gravelly  loam,  3  to  15  percent 

slopes,  severely  eroded. 
Waynesboro  gravelly  loani,  15  to  25  percent 

slopes,  moderately  eroded. 
AVaynesboro  gravelly  loam,  15  to  25  percent 

slopes,  severely  eroded. 
Waynesboro  gravelly  loam,  25  to  45  percent 

slopes,  moderately  eroded. 
Waynesboro  gravelly  sandy  loam,  0  to  8  per- 
cent slopes. 

Waynesboro  gravelly  sandy  loam,  3  to  15 

percent  slopes,  moderately  eroded. 
Waynesboro  gravelly  sandy  loam,  8  to  15 

percent  slopes,  severely  eroded. 
Waynesboro  gravelly  sandy  loam,  15  to  25  | 
I      percent  slopes,  moderately  eroded. 
See  footnotes  at  end  of  table. 


Feet 

3-4 

3-4 

3-4 

3-4 

3-4 


0-1 


(-) 

{') 
(-) 


Feet 
(') 
(') 
(') 
0) 
(') 


(■) 

4  + 

2-3 

4  + 
4  + 


5  + 

(') 

3  2 

(') 

2 

(') 

0-1 

(') 

1-2 

(') 

4  + 

(') 

4  + 

(') 

4  + 

(') 

3  + 

0) 

4  + 

(') 

4  + 

(') 

4  + 

(') 

4  + 

(') 

4  + 

(') 

3  + 

0) 

4  + 

(') 

Deep,  well-drained  soils  of  flood  plains,  of  recent 
alluvium  from  acid  shale  and  sandstone 
materials.  Infrequently  flooded.  Physical 
properties  given  are  for  the  fine  sandy  loam. 
The  gravelly  loam  and  the  silt  loam  are  essen- 
tially the  same  as  the  fine  sandy  loam,  except 
that  they  contain  gravel.  The  gravelly 
sandy  loam  will  be  SM  throughout.  Stones 
or  boulders  cover  about  20  percent  of  the 
stony  gravelly  loam. 

Poorly  drained  soils  developed  in  deposits  of 
coUuvial  fines  of  metabasaltic  materials.  Wet 
for  considerable  periods  of  time  but  seldom, 
if  ever,  flooded. 

Well-drained  upland  soils  developed  in  residuum 
from  mica  schist  with  a  surface  layer  of 
coUuvial  sandstone  debris.  Severely  eroded 
soils  have  lost  the  original  ML  surface  layer 
and  i)art  of  the  MH  subsoil. 


Well-drained  soils  developed  in  gravelly  coUuvial 
deposits  of  metabasaltic  materials,  with  some 
sandstone  and  quartzite. 

Moderately  well  drained  soils  developed  in  col- 
luvial  deposits  of  quartzite,  metabasalt,  and 
sandstone  materials.    Moderately  wet. 


Poorly  drained  .soils  on  terraces  of  very  old  al- 
luvium from  acid  sandstone  and  shale  mate- 
rials.   Very  wet. 

Soils  on  flood  plains,  of  variable  drainage,  of 
marl  deposits  and  recent  alluvium  from  lime- 
stone areas. 


Deep,  well-drained  soils  of  high  terraces,  well 
oxidized,  of  verj'  old  alluvium  from  sandstone 
and  other  sedimentary  rocks.  Physical  prop- 
erties given  are  for  the  gravelly  loam  Grav- 
elly sandy  loam  has  essentially  the  same  prop- 
erties, except  that  it  is  SM  throughout  to  GC 
substratum.  Severely  eroded  soils  have  lost 
the  original  surface  la\'er  and  part  of  the  sub- 
soil; occasional  to  frequent  gullies,  some  into 
the  substratum. 


WASHINGTON   COUNTY,  MAUYLAM) 

estimated  physical  properties — Continued 


Mil 


USDA  tcxlural  class 


Fine  saiuly  loam  to  lislit 

silt  loam. 
Gravelly  loam  


Siltv  clav  loam. 


Gravelly  silt  loam. 


Gravelly  or  ehannery  silt.v 
clay  loam. 


Gravelly  loam  

Gravelly  silt  loam  

Gravelh'  loam  

Gravelly  silt  loam  

Gravelly  sandy  clay  loam 

Gravelly  sandy  clay  

Silt  loam  

Silty  clay  loam  

Clay-./_  

Loam  

Sandy  clav  loam  

Silty 'clay  ;  

Gravelly  loam  

Gravelly  silt  loam  

Gravelly  clay  loam  

Very  gravelly  sandy  clay 


iMigineeritig  classification 


Unified 


ML_ 
GM. 


CL  or  ML. 


ML_ 
MH. 


ML  or  SM 
ML  

GM  

ML  

SO  

SC  or  CL_. 

ML  

CL  

CH  

SM  

SC  

CH  

SM  or  ML. 

ML  

CL  

GC  


AASHO 


A-4. 
A-2. 


A-6. 


A-4  

A-5  or  A-7. 


A-4. 
A-4. 

A-2_ 


I'ercentage  passing 
sieve — • 


No.  4 


A-4  

A-4  

A-6  


A-4. 
A-6. 
A-7. 

A-2. 

A-6. 
A-7_ 

A-4. 
A-4. 
A-6_ 
A-2. 


Percent 
100 

50 


100 

85 

95 


80 

85 

55 

85 
80 

80 

100 
100 
100 

98 

100 
100 

85 
85 
85 
60 


No. 
10 


Percent 
100 

40 


98 

80 
90 


70 
75 

45 

80 
70 

65 

100 
100 
100 

95 

95 
98 

80 
80 
80 
55 


No. 
200 


Percent 
50 

25 


70 

55 
75 


45 
60 

30 

55 
45 

50 

80 
85 
90 

30 

45 
80 

50 
55 
60 
30 


Scli'ctcd  cliaracteristicH  significant  in  engineering 


Range  in 
permeability 


Inches  per  hour 
0.  2-2.  0 

2.  0-fi.  3 


0.  02-0.  6 

0.  6-2.  0 
0.  2-0.  6 


0.  6-2.  0 
0.  2-0.  6 

0.  6-2.  0 

0.  6-2.  0 
0.  06-0.  6 

0.  02-0.  06 

0.  2-0.  6 
0.  02-0.  2 
0.  0-0.  02 

0.  2-0.  6 

0.  06-0.  2 
0.  06-0.  2 

0.  6-2.  0 
0.  2-0.  6 
0.  2-0.  6 
0.  2-2.  0 


Keaclion 


pll 
5.  1-6.  0 


5.  1-6.  0 

4.  5-5.  0 
4.  5-5.  5 


5.  6-6.  5 
5.  1-6.  0 

4.  5-5.  0 

5.  6-6.  5 
4.  5-5.  0 

4.  0-5.  0 

4.  0-5.  0 
4.  0-5.  0 
4.  0-4.  5 

7.  9-8.  4 

7.  9-9.  0 
7.  9-9.  0 

4.  5-5.  0 
4.  0-4.  5 
4.  0-4.  3 
4.  0-4.  5 


Dispersion 


Sh  rink-swell 
potential 


High. 
High. 


Low. 

Very  low. 


High  to 
moderate. 


High  to 

moderate. 
High  to 

moderate. 


Moderate. 
Low. 

Moderate. 


Moderate   Low 


High  to 

moderate. 
High  


Moderate  

Low  to 

moderate. 
High  


Low. 
Low. 

Low. 
Low. 

Low. 


Low   Low. 

Moderate   Moderate. 

High   High. 


Low  to 

moderate. 
High. 


Moderate. 
Moderate. 


High  I  High. 


Moderate. 
Moderate. 

Low  

Low  


Low. 
Low. 

Moderate. 
Moderate. 


102 


SOIL  SUKVICY  SERIES   1959,  NO.  17 


Table  6. — Brief  description  oj  .soils  and  (heir 


Map 
symbol 


Soil  niune 


Depth  to 
season- 
ally high  Depth 
water 
table 


to 

bedrock 


Brief  rlcscript  ion  of  site  and  .soil 


Depth 
from 
surface 
(typical 
profile) 


Wh 


WmB2 
WmC2 
WmC3 
WmD2 
WmD3 


Wchadkce  silt  loam. 


West morcland  chaiuicrv  silt   loam,  !{  to  10 

percent  slojJes,  moderately  eroded. 
Westmoreland  channery  silt  loam,  10  to  20 

percent  slo|)es,  moderately  eroded. 
Westmoreland  channery  silt  loam,  'A  to  20 

percent  slojjes,  severely  eroded. 
Westmoreland  channery  silt  k)am,  20  to  30 

percent  slopes,  moderately  eroded. 
Westmoreland  channery  silt  loam,  20  to  30 

percent  slopes,  severely  eroded. 


Feet 
0-1 


Feet 
(') 


Poorly  drained  soils  of  flood  plains,  of  recent 
allu\ium  from  areas  of  crystalline  rocks. 
Very  wet;  frequentlj'  flooded. 

Well-drained  upland  soils  developed  in  residuum 
from  acid  and  lim\'  shales,  with  some  sand- 
stone and  limestone.  Severely  eroded  soils 
have  lost  most  or  all  of  the  original  ML  hori- 
zon, and  have  occasional  to  frequent  shallow 
gullies. 


Feet 
0-12 
12-36-t- 


0-14 
14-32 

.32-42  + 


1  Tliesc  soils  consist  of  unconsolidated,  stratified  material  that  is 
old  or  new  alluvium  or  coUuvium;  depth  to  bedrock  is  variable  but 
undetermined. 

2  In  n)ost  residual  soils,  depth  to  water  table  cannot  be  estimated, 
but,  normally,  the  water  table  is  in  the  bedrock. 


3  These*soils  have  a  slowly  permeable  fragipan  in  the  subsoil. 
At  times. 'a  i)erched  water  table  is  directly  above  the  fragii)an  and 
is  se|)arated  from  a  lower,  more  permanent  water  table  by  a  layer 
of  drv  or  nearlv  drv  soil. 


Tahij:  7. — Sf>il  characteristics 


Map  symbol 


Soil 


Suitability  for 
winter  grading 


Susceptibility 
to  frost  action 


Suitability  for 
septic  tank 
sites  1 


Suitability  as  material  for- 


Road  subgrade 


Road  fill 


AsB... 
At.... 


BaA,  BaB2, 
BaC2,  BaC3. 

BcB2,  BcC2, 
BcC3,  BcD2. 

BeB,  BeB2, 
BeC2,  BeD2. 

BkB2.  BI<C2, 
BkC3,  BkD2. 

BoE3,  BoF  

BrB2,  BrC2, 
BrD. 

BtB  

BuA.  BuB2, 

BuC2,  BuD2, 
CaB2  

CcB2.  CcC2,  CcD, 
CcD2,  CcE,  CcF 


.\shton  fine  sandj'  loam  

Atkins  silt  loam  

Benevola  clay  loam  

Berks  channery  loam,  ridges  

Berks  shaly  silt  loam  

Berks  silt  loam,  ridges  

Berks  soils,  ridges  

Braddock  and  Thurmont  grav- 
elly loams. 

Brinkerton  silt  loam  

Buchanan  gravelly  loam  

Calvin    channery    fine  sandy 
loam. 

Calvin  channerv  loam  


Not  suitable.. 
Not  suitable.. 

Not  suitable.  _ 

Not  suitable.. 
Not  suitable. . 
Not  suitable. . 
Not  suitable. . 
Not  suitable. . 

Not  suitable. . 

Not  suitable. . 

Fair  

Not  suitable.. 


Moderate  

Verj'  strong. 

Moderate  


Slight  to 

moderate. 
Slight  to 

moderate. 
Slight  to 

moderate. 
Slight  to 

moderate. 
^Moderate  


Very  strong. 


Strong. 


Slight  to 

moderate. 
Slight  to 

moderate. 


Poor  (flooding). 
Not  suitable  

Fair  to  good  

Poor  to  fair  

Poor  to  fair  

Poor  to  fair  

Not  suitable  

Good  

Not  suitable  

Poor  

Fair  

Poor  to  fair  


Fair  

Very  poor 

Poor  to  fair.- 

Good  

Good  

Good  

Good  

Good  

Very  poor  

Poor  '  

Good  

Good  


Fair  to  good. . 
Very  poor '  

Poor  to  fair... 

Good  

Good  

Good  

Good  

Good  

Very  poor  

Poor '  

Good  

Good  


See  footnotes  at  end  oi:  table. 


\VASIlIN(il()N  COUNTY,  MARYLAND 


If);-; 


estimated  plinxical  p/ajx /lies — Coiil iiiucd 


USDA  textunil  class 


Silt  loam  

Silty  clay  loam  to  sandy 
ciay. 

Channery  silt  loatn  

Shaly  silty  clay  loam  

Very  shaly  loam  


Engineering  classification 


Unified 


ML 

CL. 

ML 
CL. 

GM 


AASHO 


A-4 
A-6 

A-4 
A-6 

A-2 


Percentage  passing 
sieve — 


Selected  characteristics  significant  in  engineering 


No.  4 


Percent 
100 
100 


80 
85 


60 


No. 
10 


Percent 
100 
100 


75 
80 


45 


No. 
200 


Percent 
75 
80 


60 
05 


25 


Range  in 
permeability 


Inches  per  hour 
0.  2-0.  6 
0.  02-0.  2 


0.  2-0.  G 
0.  2-2.  0 

0.  G-2.  0 


Reaction 


pil 
4.  5-5.  5 
4.  5-5.  5 


5.  6-6.  5 
5.  1-6.  0 

5.  6-6.  5 


Dispersion 


High  

High  to 
moderate. 

Moderate... 
Low  to 

moderate. 
High  


Sliri  nk-swell 
potfntial 


Low. 

Moderate. 


Low. 

Moderate. 


Low. 


*  In  the  Miirrill  soils,  d('j)th  to  bedrock  is  normally  fairly  great,  areas,  hard  limestone  is  within  a  few  feet  of  the  surface;  in  rare 
but  in  some  places  the  colluvial  material,  from  whicli  at  least  the  instances,  there  are  limestone  outcrops.  In  general,  however,  the 
uppermost  part  of  the  soil  has  been  formed,  is  thin.    In  some  such     depth  to  bedrock  cannot  be  estimated. 


that  ajftct  (  lujinceriiKj 


Suitability  as  source 
of— 


Factors  that  affect  engineering  jiractices  for- 


Topsoil 


Sand  and 
gravel 


Vertical  alinement 
of  highways 


Material 


Drainage 


Farm  ponds 


Reservoir 
areas 


Embank- 
ments 


Agricultural 
drainage 


Irrigation  - 


Terraces 

and 
diversions 


Waterways 


Excellent. 

Poor  to 
fair. 

Very 
good. 

Poor  to 

fair. 
Poor  to 

fair. 
Poor  to 

fair. 
Poor  


Fair  to 
good. 


Poor  to 
fair. 


Fair- 
Fair. 


Poor  to 
fair. 


Not  suit- 
able. 

Not  suit- 
able. 

P'ine  sand 
sub- 
strata. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
aole. 

Not  suit- 
able. 

Local 
gravel 
sub- 
strata. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 


Very  poor 
stability. 

Fine  clay.. 


Shallow  to 

bedrock. 
Shallow  to 

bedrock. 
Shallow  to 

bedrock. 
Shallow  to 

bedrock. 


Fine  clay  


Fragipan. . 

Shallow  to 
bedrock. 

Shallow  to 
bedrock. 


Occasional 
flooding. 

Flooding; 
high  wa- 
ter table, 

None  

None  

None  

None  

None  

None  


High  water 
table. 

High  water 

table. 
None  


On  low 

terraces. 
Flood  plain. 


Sandy  sub- 
strata. 

Shaly  sub- 
strata. 

Shaly  sub- 
strata. 

Shaly  sub- 
strata. 

Shaly, 
steep. 

Gravel  sub- 
strata. 


None. 


Fragipan. 

Shaly  sub- 
strata. 

Shaly  sub- 
strata. 


Very  high 

in  silt. 
Very  poor 

stability. 

Fine  clay  


Shaly  

Shaly  

Shaly  

Shaly  

Gravelly  

Fine  clay  

Fragipan  

Shaly  

Shaly  


Not  needed. 

Very  slow 
perme- 
ability. 

Not  needed. 


Not  needed. 
Not  needed. 
Not  needed. 
Not  needed. 
Not  needed. 


Very  slow 
perme- 
ability. 

Fragipan  

Not  needed  _ 
Not  needed. 


No  limita- 
tions. 

Poor  drain- 
age. 

Fine  clay.. 


Shallow  

Shallow  

Shallow  

Shallow, 
steep. 

No  limita- 
tions. 

Poor  drain- 
age. 

Fragipan.  _ 

Shallow. 

Shallow  


Erodible  

Highly 
erodible. 

Erodible  


Shallow. 
Shallow. 
Shallow- 
Shallow, 

steep. 
Erodible. 


Very  slow 
perme- 
ability. 

Slow  perme- 
ability. 

Shallow  

Shallow  


Erodible. 

Highly 
erodible. 

Erodible. 


Erodible, 

droughtj'. 
Erodible, 

droughty. 
Erodible, 

droughty. 
Erodible, 

droughty. 
Erodible. 


Highly 
erodible. 

Erodible. 

Erodible, 
droughty. 

Erodible, 
droughty. 


599553- 


!— 62  S 


104 


SOIL  SURVEY  SERIES   1959,  NO.  17 


Tabi.k  7. — Soil  characteristics 


Map  symbol 


CmB2,  CmC2, 

CmC3,  CmD, 

CmE. 
CnB2,  CnC2, 

CnC3,  CnD2, 

CnF2, 
CoB2.  CoC2, 

CoD2,  CoE3, 

CoF. 
CrB,  CrB2, 

CrC2,  CrD. 
Cs  


Ct- 


CwA,CwB2,CwC2_ 

CxC  

CyE2  

DeD,  DeE,  DeF._. 

DkD,  DkE  


DuC. 


DmA,  DmB2, 
DmC2,  DmD2, 
DmDB. 

DvC,  DvE2  


DyB2,  DyC2_ 
Dz  


EdC,  EdD2, 

EdE2,  EdF2. 
EgA,  EgD.  EgF. 

EhB2,  EhD2, 
EhE2,  EhF. 


Em 
En 


Soil 


Calvin  shalv  loam. 


Calviii-Bcrks  chaiiiu'iN-  loams, 
Calviii-]\loiitc\alio  slialv  loam 


Chandler  silt  loam  and  chan 

ncry  silt  loam. 
Chewacla  gravelly  sandy  loam. 


Chewacla  silt  loam. 


Chewacla  stonv  silt  loam   Not  suitable. . 


Suitability  for 
winter  grading 


Not  suitable. 

Not  suitable.. 

Not  suitable. 

Not  suitable. 
Not  suitable. 

Not  suitable. 


Susceptibility 
to  frost  action 


Congaree  silt  loam  and  gravelly 
loam. 


Corvdon  elav  loam. 


Corydon  extremely  rocky  clay 
loam. 

Corydon  very  rocky  clay  loam.. 

Dekalb  and  Leetonia  very  stony 
sandy  loams. 

Dekalb  and  Lehew  very  stony 
loams. 

Duffield   extremeh'   rockj-  silt 
loam. 

Duffield  silt  loam  


Duffield  very  rocky  silt  loam... 
Dunmore  cherty  silt  loam  


Dunning  and  jNIelvin  silty  clay 
loams. 


Edgemont  and  Laidig  channery 
loams. 

Edgemont    and    Laidig  ver}- 
stonj-  loams, 
s  Elliber  cherty  loam  


Eroded  land,  greenstone  ma- 
terials. 

Eroded    land,    limestone  ma- 
terials. 


Not  suitable. 

Not  suitable. 
Not  suitable. 
Not  suitable. 
Poor  to  fair.. 

Poor  to  fair.. 

Not  suitable. 
Not  suitable. 

Not  suitable. 
Not  suitable. 
Not  suitable. 

Not  suitable. 
Not  suitable. 
Not  suitable. 

Not  suitable. 
Not  suitable. 


Slight  to 
moderate. 

Slight  to 
moderate. 

Slight  to 
moderate. 


IModerate. 
Strong  


Strong. 


Strong. 


Aloderate  to 
strong. 


Moderate. 
Moderate- 
Moderate. 


Slight  to 
moderate. 

Slight  to 
moderate. 


Moderate. 
Moderate. 


Moderate  

^loderate  

Very  .strong. 


Moderate- 
Moderate. 


Slight  to 
moderate. 


Strong- 
Strong. 


Suitability  for 
septic  tank 
sites  1 


Poor  to  fair. . 

Poor  to  fair_- 

Poor  to  fair.. 

Poor  to  fair. 
Not  suitable - 

Not  suitable. 

Not  suitable. 

Not  suitable  

Poor  

Poor  

Poor  

Fair  to  good  

Fair  to  good  

Poor  to  fair  

Good  


Suitability  as  material  for — 


Road  subgrade 


Good . 
Good. 
Good. 


Fair  to  good   Fair 


Fair.. 
Poor  3. 

Poor  3. 

Poor 

Fair.. 


Poor.. 
Poor.. 
Poor.. 
Good. 

Good. 


Poor  to  fair.. 
Fair  to  good. 


Fair  

Not  suitable. 


Good. 
Good- 
Good. 


Not  suitable.. 
Not  suitable.. 


Poor  

Very  poor ' . 


Good. 
Fair. . 
Good. 


Fair. 
Fair. 


Road  fill 


Good. 
Good . 
Good- 


Fair__ 
Poor 

Poor  3. 

Poor 

Good. 


Poor.. 
Poor.. 
Poor.. 
Good. 

Good. 


Poor  to  fair.. 
Fair  to  good. 

Fair  

Poor  to  fair.. 
Very  poor ' . . 


Good. 
Fair.. 
Good. 

Fair.. 
Fair. . 


See  footnotes  at  onJ  of  table. 


WASHINGTON  COUNTY,  MARYLAND 


that  affect  eiKjInecriiKj    ( 'oiil  imicd 


Suitability  as  source 
of— 

Factors  that  affect  engineering  practices  for — 

Topsoil 

Sand  and 
gravel 

Vertical  alinement 
of  highways 

b  arm 

ponds 

Agricultural 
drainage 

Lrigatiori  • 

Terraces 

and 
diversions 

Waterways 

Material 

1  )rainage 

Reservoir 
areas 

Embank- 
ments 

Poor  to 

Not  suit- 

Shallow to 

None  ,  

Shaly  sub- 

Shaly  

Not  needed. 

Shallow  

Shallow  

Erodible, 

fair. 

able. 

bedrock. 

strata. 

droughty. 

Poor  to 

Not  suit- 

Shallow to 

None   

Shalv  sub- 

Shaly  

Not  needed - 

Shallow  

Shallow  

Erodible, 

fair. 

able. 

bedrock. 

strata. 

droughty. 

Poor  to 

Not  suit- 

Shallow to 

None 

Shaly  sub- 

Shaly  

Not  needed - 

Shallow  

Shallow  

Erodible, 

fair. 

able. 

bedrock. 

strata. 

droughty. 

Fair  

Not  suit- 

Micaceous,- 

None  

Micaceous.- 

Micaceous. - 

Not  needed. 

Shallow  

Shallow  

Erodible, 

able. 

droughty. 

Fair  

Local 

Poor  sta- 

High  water 

Flood  plain. 

Poor  sta- 

Slow per- 

Impeded 

Slow  per- 

Erodible. 

gravel 

bility. 

table. 

bility. 

meabil- 

"drainage. 

meabil- 

sub- 

ity. 

ity. 

strata. 

Fair 

Local 

Poor  sta- 

High water 

FIuckI  j)lain- 

Poor  sta- 

Slow  per- 

Impeded 

Slow  per- 

Erodible. 

gravel 

bility. 

table. 

bihty. 

meabil- 

drainage. 

meabil- 

sub- 

ity. 

ity. 

strata. 

Poor 

Local 

Stones, 

High  water 

Flood  plain, 

Stones, 

Slow  per- 

Impeded 

Stones, 

Stones, 

gravel 

boulders. 

table. 

stones. 

boulders. 

meabil- 

drainage. 

boulders. 

boulders. 

sub- 

ity. 

stones. 

strata. 

Good 

Local 

Flooding 

Flood  plain - 

Variable 

Not  needed- 

No  limita- 

Erodible  

Erodible. 

sandy 

perme- 

tion. 

gravel 

ability. 

sub- 

strata. 

Good 

Not  suit- 

Limestone 

None 

Limestone 

Fine  clay  

Not  needed- 

Shallow; 

Shallow; 

Erodible; 

able. 

ledges. 

ledges. 

ledges. 

ledges. 

ledges. 

Poor 

Not  suit- 

Rockiness_ _ 

None 

Rockiness.  _ 

Rockiness.  - 

Not  needed - 

Rockiness. . 

Rockiness.  . 

Rockiness. 

able. 

Fair 

Not  suit- 

Rockiness-. 

None 

Rockiness-  - 

Rockiness  -  - 

Not  needed- 

Rockiness.  . 

Rockiness. . 

Rockiness. 

able. 

Poor  to 

Not  suit- 

Shallow to 

None 

Permeable 

Stones, 

Not  needed. 

Stones, 

Stones, 

Stones, 

fair. 

able. 

bedrock. 

sub- 

boulders. 

boulders. 

boulders. 

boulders. 

strata. 

Poor  to 

Not  suit- 

Shallow to 

None 

Permeable 

Stones, 

Not  needed- 

Stones, 

Stones, 

Stones, 

fair. 

able. 

bedrock. 

sub- 

boulders. 

boulders. 

boulders. 

boulders. 

strata. 

Good 

Not  suit- 

Rockiness_ _ 

None.  . 

Rockiness.  . 

Rockiness  -  - 

Not  needed- 

Rockiness  - . 

Rockiness. . 

Rockiness. 

able. 

Very 

Not  suit- 

Shallow to 

None     _ .  _ 

Not  needed. 

No  limita- 

Erodible  

Erodible. 

efood 

able. 

bedrock. 

tion. 

Good 

Not  suit- 

Rockiness- _ 

None 

Rockiness 

Rockiness 

Not  needed. 

Rockiness . 

Rockiness. . 

Rockiness. 

able. 

Very 

Not  suit- 

Fine clay  

None.  . 

Fine  clay  

Not  needed- 

Fine  clay 

Erodible  

Erodible. 

efood 

able. 

subsoil 

Good 

Not  suit- 

Very poor 

Flooding; 

Flood  plain - 

Very  pK)or 

Slow  per- 

Poor drain- 

Erodible  

Erodible. 

able. 

stability. 

high  wa- 

stability. 

meabil- 

age 

ter  table. 

ity;  high 

water 

table. 

Fair  

Not  suit- 

Shallow to 

None  ... 

Channery  .  . 

Not  needed. 

No  limita- 

Erodible  

Erodible. 

able. 

bedrock. 

tion. 

Fair  

Not  suit- 

Shallow to 

None. 

Stones, 

Stones, 

Not  needed - 

Stones, 

Stones, 

Stones, 

able. 

bedrock. 

boulders. 

boulders. 

boulders. 

boulders. 

boulders. 

Good 

Not  suit- 

Shallow to 

None  

Permeable 

Chertj'.  . 

Not  needed. 

No  limita- 

Erodible  

Erodible 

able. 

bedrock. 

sub- 

tion. 

strata. 

Poor, 

Not  suit- 

Shallow to 

None  

Variable  

Variable.  . 

Erodible  

Erodible. 

able. 

bedrock. 

Poor 

Not  suit- 

Shallow to 

None  _ 

Variable  

Variable. 

Erodible  

Erodible. 

able. 

bedrock. 

106 


SOIL  SUHVEY   SEHIKS    1  959,  NO.  17 


Table  7. — Soil  characteristics 


Map  symbol 


Er. 
Es. 


EtA,  EtB2.  EtC2, 
EtD2. 

EwA,  EwB2, 
EwC2. 

FaB,  FaB2,  FaC2, 

FaE2. 
FsA,  FsB2,  FsC2 


FtC2  

FrE  

FuD,  FuE, 


FvC2,  FvC3, 

FvE2. 
FwA,  FwB2, 

FwB3,  FwC2, 

FwC3.  FwD2. 

FwD3,  FwE2, 

FwE3. 
FyB2,  FyC2, 

FyC3,  FyD2, 

FyD3,  FyE2. 
HaA,  HaB2, 

HaB3,  HaC2, 

HaC3,  HaD2, 

HaD3. 
HbD2  


HcD2. 
HdE_. 


HeA,  HeB2, 
HeC2,  HeD2. 

HfA,  HfB2, 
HfC2,  HfD2. 

HgC2,  HgE2. 


HhC2,  HhC3, 

HhE2. 
HkF  


H1A._. 
HmE2_ 


HnB2,  HnC2, 

HnC3,  HnD2, 

HnD3,  HnE. 
HoB,  HoB2, 

HoC2,  HoE2. 
HpB,  HpD, 

HpE. 
HrA,  HrB2, 

HrC2,  HrD2, 

HrD3,  HrE2. 

See  footnotes  at  end  of  table 


Soil 


Eroded   land,    sandstone  and 

quartzite  inatorials. 
Eroded  land,  ^hale  and  schist 

materials. 
Etowah  gravelly  loam  


Etowali  silt  loam 


Fauquier  channer\^  loam  

Fauqui(>r  silt  loam  

Fauquier  silt  loam,  shallow - 
Fauquier  very  stony  loam__ 


Frankstown    extremely  rocky 

silt  loam. 
Frankstown    V(>r\-    rocky  silt 

loam. 

Frankstown  and  Duflield  chan- 
iierv  silt  loams. 


Frederick  cherty  silt  loam_ 
Hagerstown  clay  loam  


Hagerstovvn    extremely  rock}' 

silt  loam. 
Hagerstown    extremely  rocky 

silty  clay  loam. 
Hagerstown    extremely  rocky 

soils. 

Hagerstown  silt  loam  


Hagerstown  silty  clay  loam  

Hagerstown  very  rocky  silt  loam_. 

Hagerstown   very   rocky  silty 

clay  loam  

Hagerstown  very  rocky  soils  

Hagerstown,  Corydon,  and  Duf- 
field  very  rocky  silt  loams. 

Hagerstown  and  Duffield  silt 
loams. 

Hazel  channerv  silt  loam  


Highfield  gravelly  loam  

Highfield  very  stony  loam. 
Holston  gravellv  loam  


Suitability  for 
wint(>r  grading 


Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  


Susceptibility 
to  frost  action 


Strong  

Strong  

Moderate.  _. 

Moderate... 

Moderate... 
^Moderate... 
Moderate... 
Moderate... 
Moderate... 
Moderate... 
Moderate... 

Moderate... 
Moderate. -. 

Moderate... 

Moderate... 

Moderate... 

Moderate... 

Moderate. .- 

Moderate... 

Moderate.. - 

Moderate.. - 

Moderate... 

Moderate... 

Slight  to 
moderate. 

Moderate. 

Moderate  

Moderate... 


Suitability  for 
septic  tank 
sites  ' 


Not  suitable - 
Not  suitable. 
(Jood  

Good  

Good  

Good  

Poor  

]''air  

Poor  to  fair-. 
Fair  to  good. 
Good  

Good  

Good  

Fair  

Fair  

Not  suitable. 

Good  

Good  

Fair  

Fair  

Not  suitable. 

Fair  

Not  suitable. 
Not  suitable. 

Good  

Good  

Good  


Suitability  as  material  for- 


Uoad  subgrade 


Fair  

Poor  

Fair  to  good .  _ 

Fair  to  good .  _ 

Fair  

Fair  

Fair  

Fair  

Poor  to  fair  

Fair  

Good  

Fair  

Poor  

Poor  

Poor  

Poor  

Poor  

Poor  

Poor  

Poor  

Poor  

Poor  

Poor  

Fair  to  good. . 

Good  

Fair  

Good  


Road  fill 


Fair  

Poor  

Good  

Good  

Good  

Good  

Good  

Fair  

Poor  to  fair. 

Fair  

Good  

Fair  to  good 
Poor  

Poor  

Poor  

Poor  

Poor  to  fair. 
Poor  to  fair. 

Poor  

Poor  

Poor  

Poor  

Poor  

Good  

Good  

Fair  

Good  


WASHINGTON  COUNTY,  MAHYLAM)  |  ()7 


that  affect  engineering — Continued 


Siii(;il)ilitv  :is  sourt'(! 
of— 

Factors  that  alFct-t  ciigiiicci-intf  jjiactices  for  - 

Topsoil 

Sand  and 
gravel 

Vertical  alincmont 
of  highways 

Farm  ponds 

Agricultural 
drainage 

Irrigation  ^ 

Terraces 

and 
diversions 

Waterways 

Material 

Drainage 

Reservoir 
areas 

Embank- 
ments 

Poor 

Not  suit- 

Shallow to 

Variable  

Variable  

Variable 

Erodible  

Erodible. 

able. 

bedrock. 

Poor 

Not  suit- 

Shallow to 

None  . . 

Variable  

Variable  

Erodible  

Erodible. 

able. 

bedrock. 

Good 

Gravelly 

None. 

Gravelly 

Not  needed. 

Xo  limita- 

Erodible  

Erodible. 

sub- 

sub- 

tion. 

strata. 

strata. 

Good 

Gravelly 

None_  _. 

Gravelly 

Not  needed. 

No  limita- 

Erodible  

Erodible. 

sub- 

sub- 

tion. 

strata. 

strata. 

Good 

Not  suit- 

None 

Not  needed. 

No  limita- 

Erodible  

Erodible. 

able. 

tion. 

Good 

"\^nt.  t;i  1  i f,- 

None 

Not  nppHpH 

No  limita- 

ErorliHlp 

Erorlihlc 

able. 

tion. 

Good 

Not  suit- 

None 

Shallow 

Not  needed- 

Shallow  

Shallow  

Shallow; 

able. 

erodible. 

Good 

Not.  f^m't,- 

Stones 

None 

Stones. 

Stones. 

A  1  v."  U    11  C  C  V.i  vT  VJ.  _ 

Stones 

St.onPQ 

able. 

Good 

Not  suit- 

Rocki- 

None 

Rocki- 

Rocki- 

Not needed 

Rocki- 

Rocki- 

Rockiness. 

able. 

ness. 

ness. 

ness. 

ness. 

ness. 

Good 

Not  suit- 

Rocki- 

None   

Rocki- 

Rocki- 

Not needed. 

Rocki- 

Rocki- 

Rockiness. 

able. 

ness. 

ness. 

ness. 

ness. 

ness. 

Very 

Not  suit- 

None 

Not  needed. 

No  limita- 

Erodible  

Erodible. 

good. 

able. 

tion. 

Good 

Not  suit- 

Shallow to 

None.   ._  - 

Not  needed. 

No  limita- 

Erodible  

Erodible. 

able. 

bedrock. 

tion. 

Good 

Not  suit- 

Occasional 

None  ... 

Occasional 

Fine  clay  

Not  needed. 

No  limita- 

Erodible  

Erodible. 

able. 

ledges. 

ledges. 

tion. 

Good 

Not  suit- 

Rockiness_ _ 

None 

Rockiness. . 

Rockiness. . 

Not  needed. 

Rockiness.  _ 

Rockiness. . 

Rockiness. 

able. 

Good 

Not  suit- 

Rockiness. . 

None  ... 

Rockiness.  _ 

Rockiness. . 

Not  needed. 

Rockiness. . 

Rockiness.  . 

Rockiness. 

able. 

Good 

Not  suit- 

Rockiness-. 

None 

Rockiness. . 

Rockiness.  - 

Not  needed. 

Rockiness.  . 

Rockiness. 

able. 

Very 

Not  suit- 

Occasional 

None..   .  . 

Occasional 

Fine  clay  

Not  needed. 

No  limita- 

Erodible  

Erodible. 

good. 

able. 

ledges. 

ledges. 

tion. 

Very 

Not  suit- 

Occasional 

None  

Occasional 

Fine  clay  

Not  needed. 

No  limita- 

Erodible  

Erodible. 

good. 

able. 

ledges. 

ledges. 

tion. 

Good 

Not  suit- 

Rockiness. _ 

None  . 

Rockiness. . 

Rockiness.  . 

Not  needed. 

Rockiness. . 

Rockiness.  . 

Rockiness. 

able. 

Good 

Not  suit- 

Rockiness. _ 

None 

Rockiness. . 

Rockiness  - . 

Not  needed. 

Rockiness. . 

Rockiness.  . 

Rockiness. 

able. 

Good 

Not  suit- 

Rockiness. . 

None  . 

Rockiness. . 

Rockiness. . 

Not  needed 

Rockiness. . 

Rockiness. 

able. 

Good 

Not  suit- 

Rockiness. . 

None..  - 

Rockiness. . 

Rockiness.  - 

Not  needed. 

Rockiness.  . 

Rockiness.  _ 

Rockiness. 

able. 

Good 

Not  suit- 

Occasional 

None  - 

Occasional 

Fine  clay  

Not  needed 

Erodible  

Erodible. 

able. 

ledges. 

ledges. 

Poor  to 

Not  suit- 

Shallow to 

None 

Very  shal- 

Channery, 

Not  needed- 

Very  shal- 

Very shal- 

Erodible. 

fair. 

able. 

bedrock. 

low. 

mica- 

low. 

low. 

ceous. 

Good 

Not  suit- 

Shallow to 

None.  .. 

Not  needed- 

No  limita- 

Erodible  

Erodible. 

able. 

bedrock. 

tion. 

Good 

Not  suit- 

Shallow to 

None 

Stones   

Stones  

Not  needed. 

Stones..  1 

Stones  

Stones. 

able. 

bedrock. 

Fair  

Gravelly 

None.  - 

Gravelly 

Not  needed. 

No  limita- 

Erodible  

Erodible. 

sub- 

sub- 

tion. 

strata. 

strata. 

108 


SOIL  SURVEY  SERIES   1959,  NO.  17 


Table  7.- — Soil  characteristics 


Map  symbol 


HsB,  HsC2, 
HsC3. 

HtA,  HtB2, 
HtC2. 


Hu. 

Hv_ 
Hw. 

Hx_ 


LaA,  LaB2, 

LaC2,  LaD2. 
LbD,  LbE2... 


LcB2,  LcD2. 

Le  

LgA,  LgB2_. 

Lm  

Ln  


LoB2,  LoC2, 
LoC3, 

LsB,  LsB2,  LsC2. 
LsC3,  LsD2, 
LsDB,  LsE2, 
LsE3,  LsF. 

LtB,  LtC2,  LtC3, 
LtD2,  LtD3, 
LtE2 

Me  


MsB2,  MaC2_ 


MhA,  MhB2, 
MhC2,  MhD2. 


MmB2,  MmC2, 

MmC3,  MmD2 

MmD3. 
MoA,  MoB2, 

MoC2,  MoD2, 

MoD3,  MoE2. 
MrB,  MrC2, 

MrC3,  MrD2, 

MrD3. 
MsA,  MsB2, 

MsC2. 

See  footnotos  iit  end  of  tahl 


Soil 


Holstoii  gravelly  sandy  loam  

Holston  silt  loam  


Ilimtiiislon  fiiu;  sandy  loam  

IluiUinfilon  siravelly  loam  

Iluntinstoii  silt  loam  


Iluiitington     silt     loam,  local 

alluvium. 
Laidig  gravelly  loam  


Laidig  very  stony  loam  

Landisburg  chcrty  silt  loam. 

Largcnt  silt  loam  

Lead\alt>  gravelly  silt  loam. 
Lindsidc  silt  k)am  


Lindside  silt  loam,  loeal  allu- 
vium. 

Litz  channerv  loam  


Suit-ability  for 
winter  grading 


Litz  shah-  loam. 


Litz-Teas  ehannerv  silt  loams. 


Alt'lvin  silt  loam_ 


Monoiigahehi  gravelly  loam  

Monongaliela  silt  loam  

Monlevallo  shaly  loam  

Murrill  gravelly  loam  

Murrill  graxflly  sandy  loam  

Murrill  silt  loam  


Not  suitable - 


Not  suitable. 


Not  su 
Not  su 
Not  su 
Not  su 
Not  su 
Not  su 
Not  su 
Not  su 
Not  su 
Not  su 
Not  su 
Not  su 


table. 

table. 

table. 

table. 

table. 

table 

table- 

table. 

table. 

table, 

table. 

table 


Not  suitable. 

Not  suitable. 
Not  suitable. 

Not  suitable. 
Not  suitable. 
Not  suitable. 
Not  suitable. 
Not  suitable. 
Not  suitable. 


Susceptibility 
to  frost  action 


Slight  

Moderate. 


Moderate. 
Moderate. 
Moderate.  _. 
Moderate... 
Moderate. -- 
Moderate. -- 

Strong  

Strong  

Strong  

Strong  

Strong  


Slight  to 
moderate. 

Slight  to 
moderate. 


Slight  to 
moderate. 

Very  strong.-. 


Suitability  for 
septic  tank 
sites  ' 


Strong. 
Strong. 


Poor. 
Poor. 
Poor. 
Good. 
Good. 
Moderate   Good. 


Shght  to 
moderate. 

Moderate  


Slight  to 
moderate. 


Good. 
Good. 


Not  suitable. . 
Not  suitable  . 
Not  suitable. 

Fair  

Good  

Good  

Poor  

Not  suhable.. 

Poor  

Not  suitable-  _ 

Poor  

Poor  


Poor. 


Poor. 


Not  suitable  - . 


Suitability  as  material  for- 


Road  subgrade 


Good  

Good  

Good  

Good  

Fair  

Fair  

Good  

Fair  

Poor  

Poor'  

Poor  

Poor  '  

Poor  

Good  

Good  

Good  

Very  poor  

Poor  to  fair.. 
Poor  to  fair.. 
Fair  to  good. 

Good  

Good  


Road  fill 


Good  

Good  

Fair  to  good. 
Fair  to  good. 
Fair  to  good. 
Fair  to  good. 

Good  

Fair  

Poor  

Poor '  

Poor  to  fair.. 

Poor  '  

Poor  

Good  

Good  

Good  

Very  poor  

Fair  to  good. 
Fair  to  good. 

Good  

Good  

Good  


Fair  i  Good. 


WASIIINCTOX    COrNTV,   .\IAi;  Vl.AMJ 

that  affect  engineering — Continued 


109 


Suitabilitv  a.s  source 
of— 


Tojisoil 


Sand  and 
gravel 


I'"a('t()rs  llial  .■illVcl  ciiniiH'cr  inn  practices  (or 


Vertical  alineinent 
of  highways 


Material 


Drainage 


Farm  ponds 


Reservoir 
areas 


Embank- 
ments 


Agricultural 
drainage 

Irrigation  ^ 

Terraces 

and 
diversions 

Waterways 

Not  needed. 

No  limita- 
tion. 

Erodible  

Erodible. 

Not  needed- 

No  limita- 
tion. 

Erodible  

Erodible. 

Not  needed. 
Not  needed  _ 
Not  needed- 
Not  needed- 
Not  needed- 
Not  needed. 

No  limita- 
tion. 

No  limita- 
tion. 

No  limita- 
tion. 

No  limita- 
tion. 

No  limita- 
tion. 

Stones  -  _ . 

Erodible  

Erodible  

Erodible  

Erodible  

Erodible  

Stones  

Erodible. 
Erodible. 
Erodible. 
Erodible. 
Erodible. 
Stones. 

Fragipan  

High  water 

table. 
Fragipan  

High  water 

table. 
High  water 

table. 
Not  needed. 

Fragipan  

Impeded 

drainage. 
Fragipan  

Impeded 
drainage. 

Impeded 
drainage. 

Shallow  

Slow  perme- 
ability. 

Slow  perme- 
ability. 

Slow  perme- 
ability. 

Slow  perme- 
ability. 

Slow  perme- 
ability. 

Shallow  

Erodible. 

Erodible. 

Erodible. 

Erofiible. 

Erodible. 

Shallow ; 
droughty. 

Not  needed. 

Shallow  

Shallow  

Shallow ; 
droughtj'. 

Not  needed. 

Shallow  

Shallow  

Shallow; 
droughty. 

High  water, 
table. 

Poor  drain- 
age. 

Slow  perme- 
ability. 

Erodible. 

Fragipan  

Fragipan  

Not  needed. 

Fragipan  

Fragipan  

Shallow  

Very  slow 
perme- 
ability. 

Very  slow 
pel  iiie- 
ability. 

Shallow  

Erodible. 

Erodible. 

Shallow; 
droughty. 

Not  needed. 

No  Hmita- 
tion. 

Erodible  

Erodible. 

Not  needed. 

No  limita- 
tion. 

Erodible  

Erodii)le. 

Not  needed. 

No  limita- 
tion. 

Erodible  

Erodible. 

Poor. 
Fair- 


Good  

Good  

Excellent. 
Excellent. 

Fair  

Fair  

Fair  

Fair  

Fair  


Fair  to 
good. 
Good... 


Fair. 
Fair. 


Fair.. 
Good. 

Fair.. 
Fair-. 
Poor. 
Good. 
Fair.. 


Gravelly 
sub- 
strata. 

Gravelly 
sub- 
strata. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 


Not  suit- 
able. 

Not  suit- 
able. 


Gravelly 
sub- 
strata. 

Gravelly 
sub- 
strata. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 


Stones  

Fragipan. . 

Poor  sta- 
bility. 
Fragipan. . 

Shallow  to 
bedrock. 

Shallow  to 
bedrock. 


Shallow  to 
bedrock. 

Very  poor 
stability. 


Fragipan  _ 
Fragipan  _ . 


Shallow  to 
bedrock. 


Good   Not  suit- 

1  able. 


None. 
None. 


Flooding. . 

Flooding  

Flooding  

None  

None  

None  


High  water 

table. 
High  water 

table 
High  water 

table. 
High  water 

table. 
High  water. 

table. 
None  


None. 


None- 


Flooding; 

high 

water 

table. 
High  water 

table. 

High  water, 
table. 


None. 
None. 
None. 
None . 


Gravelly 
sub- 
strata. 

Gravelly 
sub- 
strata. 

Flood  plain 

Flood  i)lain. 
Flood  plain 


Stones  

Fragipan  

Flood  plain. 

Fragipan  

Flood  plain. 


Channery 
sub- 
strata. 

Shaly  sub- 
strata. 


Channery 
sub- 
strata. 

Flood  plain 


Fragipan  

Fragipan  


Shaly  sub- 
strata. 


Sandy. 


Sandv 


High  in 

silt. 
High  in 

silt. 
Gravelly. 

Stones  

Fragipan . 

Poor  sta- 
bility. 
Fragipan. 

Poor  sta- 
ability. 

Poor  sta- 
bility. 

Channery 

Shalv  


Cluinnery .  _ 

Very  poor. . 
sta- 
bility. 

Fragipan  

Fragipan  

Shalv  


Sand^ 


110 


SOIL  SURVEY  SERIES   1959,  NO.  17 


Table  7. — Soil  characterifitics 


Suitability  as  material  for — 

Road  subgrade 

Poad  fill 

Fair  

Fair  to  good.. 

Fair  

Fair  to  good.. 

Fair  .   . . 

Fair  to  good.. 

Fair  

Fair  to  good.. 

Poor       .  .  _ 

Fair  

Poor  . . 

Poor  

Fair      _  _ 

Fair  to  good.. 

Fair  

Fair  to  good__ 

Fair  

Fair  to  good.. 

Poor  to  fair  

Fair.  ... 

Fair...   

Fair  

Poor 

Poor.        - .  . 

Poor 

Poor.  - 

Fair-  .   

Fair  

Poor. 

Poor 

Poor  to  fair  

Fair  

Variable 

Variable 

Fair  to  good_  _ 

Good  

Poor  to  fair  

Poor  to  fair  

Ver}-  poor  

Very  poor  

Poor 

Poor  to  fair  

Map  symbol 


MvA,  MvB2, 
MvC2,  MvD2, 
MvE2. 

MwB3,  MwD3.. 

MxA,  MxB2, 

MxC2. 
MyE2,  MyF2..- 


Pg- 
Ph- 
Pn. 

Po. 

Pp- 

Ps. 


Pt. 


Rk.... 
RoB2. 
Sr.... 
Ss-... 


TaC2,  TaC3, 
TaD,  TaE2. 


Te  

ThB2,  ThC2. 


TrA,  TrC2. 

TyB  

Wa  


Soil 


Myersville  channery  loam. 


Myersvillc  channery  silt  loam. 

Myersville  silt  loam  

Myersvillc  very  stony  loam  

Pliilo  gra\  ('lly  sandy  loam  

Philo  silt  loam  

Pope  fine  sandy  loam  


Po])e  gravelly  loam  

Pope  gravelly  sandy  loam. 

Pope  silt  loam  

Pope  stony  gravelly  loam. 


Rocky  eroded  land  

Rohrersville  silty  clay  loam  . 

Stony  rolling  land  

Stony  steep  land  


Talladega   gravelly   silt  loam, 
thick  solum  variant. 

Terrace  escarpments  

Thurmont  gravelly  loam  


Suitability  for 
winter  grading 


Trego  gravelly  silt  loam. 

Tyler  silt  loam  

Warners  loam  


Not  suitable. 

Not  suitable. 
Not  suitable . 
Not  suitable. 
Not  suitable. 
Not  suitable- 
Not  suitable. 

Not  suitable. . 

Not  suitable. . 

Not  suitable  _ . 

Not  suitable. . 

Not  suitable. . 
Not  suitable. . 
Not  suitable.  _ 
Not  suitable. . 
Not  suitable. 


Not  suitable. 
Not  suitable - 


Not  suitable. 


Not  suitable. 


Susceptibility 
to  frost  action 


Moderate  

Moderate... 

Moderate  

Moderate  

Strong  

Strong  

Moderate  to 
s*  rong. 

Moderate  to 
strong. 

Moderate  to 
strong. 

Moderate  to 
strong. 

Moderate  to 
strong. 

Moderate  

Very  strong. 

Slight  to 

moderate. 
Slight  to 

moderate. 
Moderate  

Variable  

Moderate... 

Strong  

Very  strong. 


Suitability  for 
septic  tank 
sites  ' 


Good  

Good  

Good  

Good  

Not  suitable . . 
Not  suitable .  _ 
Not  suitable  

Not  suitable.  _ 

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Not  suitable  

Good  

Not  suitable  

Good  

Poor  

Not  suitable  


Not  suitable         Moderate  to    i  Not  suitable  

strong. 


See  footnotes  at  end  of  table. 


\VASIIIN(iT().\    COUNTY,  MAHVLAXD 


111 


that  affect  engmeering — ( imicc 


Suitabilitv  as  source 
of— 


r'actors  tliiil  iiirci't  ciiniiiciTiiig  practices  for — 


Topsoil 


Saiul  and 
gravel 


Vertical  aliiieinent 
of  highways 


Malerial 


Drainage 


I''ariii  p()ii(l> 


Reservoir 
areas 


Embank- 
ments 


Agricultin'al 
drainage 


Trrigat  ion  - 


Terraces 

and 
diversions 


\Vat<;r\vavs 


Cood_._ 

Good  

Good... 

Good  

Poor . „ . 

Poor  

Good... 

Good... 

Fair  

Good  

Fair  

Fair  

Good... 

Poor  

Poor  

Fair  

Variable 
Good... 

Fair  


Poor  to 
fair. 

\'ery 
good. 


Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Local 
gravel 
sub- 
strata. 

Local 
gravel 
sub- 
strata. 

Local 
gravel 
sub- 
strata. 

Local 
gravel 
sub- 
strata. 

Local 
gravel 
sub- 
strata. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Not  suit- 
able. 

Variable. 

Local 
gravel 
sub- 
strata. 

Local 
gravel 
sub- 
strata. 

Not  suit- 
able. 

Not  suit- 
able. 


Shallow  to 
bedrock. 

Shallow  to 
bedrock. 

Shallow  to 
bedrock. 

Shallow  to 
bedrock. 


Poor  sta- 
bility. 


Stones - 


Rockiness_ 

Poor  sta- 
bility. 

Stones, 
boulders. 

Stones, 
boulders. 

Shallow  to 
becirock. 

Variable  


Fragipan . . . 


Very  poor 
stability. 

Poor  sta- 
bility. 


None. 

None. 
None. 
None . 


High  water 

table. 
High  water 

table. 
Flooding  


Flooding. 


Flooding. 


Flooding. 


Flooding  


None. 


High  water 

table. 
None  


None. 
None. 


Variable. 
None  


High  water 
table. 


High  water 
table. 

High  water 
table. 


Stones  

Flood  plain. 
Flood  plain. 
Flood  plain. 

Flood  plain. 

Flood  plain. 

Flood  plain - 


Stones; 
flood 
plain. 

Rockiness. . 


Stones, 
boulders. 

Stones, 
boulders. 

Channery 
sub- 
strata. 

Variable... 

Gravelly 
sub- 
strata. 

Fragipan. - 


Flood  plain. 


Stones. 
Sandy. 


Poor  sta- 
bility. 
Sandy  


Sandj'. 


High  in  silt. 


Stones - 


Rockiness.  . 

Poor  sta- 
bility. 

Stones, 
boulders. 

Stones, 
boulders. 

Micaceous.. 


Variable  


Fragipan  


Very  poor 
stabihty. 

Poor  sta- 
bility. 


Not  needed. 

Not  needed. 
Not  needed. 
Not  needed. 

High  water 

table. 
High  water 

table. 
Not  needed. 

Not  needed. 

Not  needed. 

Not  needed. 

Not  needed. 

Not  needed. 


Slow  per- 
meability. 
Not  needed. 

Not  needed. 

Not  needed. 


Variable  

Not  needed. 


Fragipan.. 


Very  slow 
perme- 
ability. 

Slow  perme- 
ability. 


No  limita- 
1  ion. 

Severely 
eroded. 

No  limita- 
tion. 

Stones  


Impeded 
drainage. 

Impeded 
drain.-inc 

No  limita- 
tion. 


No  limita- 
tion. 


No  limita- 
tion. 


No  limita- 
tion. 


Stones. 


Poor 

drainage. 


No  limita- 
tion. 

Variable.. 
No  limita- 
tion. 


Fragipan. 


Poor  drain- 
age. 

Impeded 
drainage. 


Erodible. 

I'^rodibk!. 
Erodible. 
Stones. . 


Slow  per- 
meability. 

Slow  pcr- 
jiical)ility. 

i'>(j(iil)le  


Erodible  


Erodible.. 


Erodible. 


Stones. 


Rockiness. . 
Erodible  

Stones, 

boulders. 
Stones, 

boulders. 
Erodible  


Erodible  

Erodible.... 


Erodible. 


Very  slow 
perme- 
ability. 

Erodible... 


Erodible. 

Erodible. 

Erodible. 

Stones. 

Erodible. 

Erodible. 

Erodible. 

Erodible. 

Erodible. 

Erodible. 

Stones. 

Rockiness. 
Erodible. 

Stones, 

boulders. 
Stones, 

boulders. 
Erodible. 


Erodible. 
Erodible. 


Erodible. 

Erodible. 
Erodible. 


112 


SOIL  SURVEY  SERIES   1959,  NO.  17 


Table  7. — Soil  characteristics 


Map  symbol 


Soil 


Suitabilitj^  for 
winter  grading 


Susceptibility 
to  frost  action 


Suitability  for 
septic  tank 
sites  ' 


Suitability  as  material  for- 


Koad  subgrade 


Road  fill 


WbA,  WbB2, 

WbC2.  WbC3. 

WbD2,  WbD3. 

WbE2. 
WgB,  WsC2, 

WgC3,  WgD2. 

Wh  


WmB2,  WmC2, 
WmC3,  WmD2, 
WmD3. 


Waynesboro  gravelly  loam. 


Waynesboro    gravelly  sandy 
loam. 

Wehadkee  silt  loam  


Westmor( 
loatn. 


land     channerj'  silt 


Not  suitable. 

Not  suitable  _ 
Not  suitable. 

Not  suitable. 


Moderate.   Good 


Good. 


Slight. 


Good. 


Good. 


W'rv  strong  '  Not  suitable  i  Poor. 


-Moderate. 


Good. 


Good. 


Good 

(iood 
Poor. 

Good 


'  liatings  of  fair  to  good  suitability  for  septic  tank  sites  aj)ply 
only  to  soils  having  sloijes  no  greater  than  8  percent.  Because  of 
lateral  movement  of  liquid  and  possible  seepage,  the  soils  that  have 
slopes  betweeu  8  and  15  percent  are  less  suitable  for  septic  tank 


sewage  disposal,  and  all  soils  that  have  slopes  greater  than  15 
percent  are  almost  entirely  unsuitable.  Groupings  of  soils  for 
sewage  disposal  are  discussed  in  another  section  of  this  report. 


The  crops  in  each  truck-crop  group  are: 

Truck  sroup  1  (very  shallow  rooted): 
Lettuce 
Onions 
Spinach 
Strawberries 

Truck  group  2  (shallow  roctod)  : 
Beets 
Broccoli 
( 'abliage 
( 'aulitlower 
Celery 
Cucumbers 
Peas 

Snap  beans 

Truck  group  3  (moderately  deep  rooted)  : 
Asparagus 
Eggplant 
Lima  beans 
Melons 
Peppers 
Pumpkins 
Squash 

]Most  of  the  other  crops  listed  need  no  explanation. 
'"Grass  mixture"  may  be  any  of  several  mixtures  of 
grasses,  witli  or  witliout  clovers  or  alfalfa,  commonly 
used  for  pasture  or  for  liay.  Orchards  include  apples, 
peaches,  cherries,  plums,  and  prunes.  Where  orchards 
are  indicated  with  cover,  it  means  that  a  close-growing 
crop  covers  the  surface  of  the  soil  between  orchard  trees 
at  the  time  of  irrigation;  where  orchards  are  indicated 
without  cover,  it  means  tliat  tlie  soil  between  the  orchard 
trees  is  bare,  or  nearly  so,  when  irrigation  water  is  ap])lied. 

Irrigation,  to  be  successful,  nnist  meet  tlie  needs  of 
the  crops  and  must  suit  tlie  soils  to  be  irrigated.  Different 


crops  will  need  different  amounts  of  water  and  at  dif- 
ferent intervals.  Some  soils  hold  much  water;  some  hold 
little.  Water  penetrates  some  soils  readily,  others  much 
more  slowly.  Consequently,  different  kinds  of  .soils  should 
not  be  irrigated  alike.  It  is  for  these  reasons  that  table  8 
has  been  arranged  to  place  the  better  agricultural  soils 
of  Washington  County  in  definite  irrigation  soil  groups. 
Tlie  soils  within  each  group  can  be  irrigated  alike,  and 
the  differences  within  each  group  depend  mostly  on  the 
type  of  crop  to  be  irrigated. 

Irrigation  soil  grotip  1  consists  of  the  sandy  soils  of 
the  county.  Because  these  soils  liave  a  relatively  high 
infiltration  capacity,  water  application  rates  can  be 
fairly  high,  but  they  retain  less  moistui'e  than  most  of 
the  other  soils  of  the  county.  On  these  sandy  soils,  irriga- 
tion systems  should  be  designed  for  relatively  small 
amounts  of  water  applied  frequenth'. 

The  soils  of  irrigation  soil  group  2  are  only  moderately 
well  drained.  They  must  be  improved  by  artificial  drain- 
age before  they  are  suitable  for  irrigation.  The  same  is 
true  for  some  soils  in  irrigation  soil  grouj^s  1  and  3. 
The  soils  of  group  2  have  a  very  slowly  permeable,  tough 
or  dense  harclpan,  or  a  clay  subsoil,  that  limits  the  depth 
of  effective  root  development  and,  thus,  liinits  the  effective 
depth  for  irrigation.  Therefore,  available  moisture  capa- 
cities within  root  zones  are  lower  for  soils  of  group  2 
than  for  better  soils. 

Irrigation  soil  group  3  consists  of  deep,  medium- 
textured  soils  underlain  by  sand,  silt,  and  gravel.  AVater 
must  be  applied  somewhat  slowly  here,  but  the  soil  can 
retain  larger  amounts  of  water  than  can  the  soils  of 
groups  1  and  2. 


WASHINGTON  COUNTY,  MARYLAND 


I. '-5 


that  affect  engineering — Continued 


Suil ability  a.s  source 
of— 


Factors  that  alTccl  engineering  practices  for 


Topsoil 


Sand  and 
gravel 


Vertical  alinenient 
of  highways 


Material 


Drainage 


I'^ai  in  ponds 


Reservoir 
areas 


iMnhank- 
nients 


Agricultural 
drainage 


Irrigation ' 


Terraces 

and 
diversions 


VVaterwavs 


Fair. 


Fair. 


Poor  to 
fair. 


Good. 


Gravelly 
sub- 
strata. 

Gravelly 
sub- 
strata. 

Local 
gravel 
sub- 
strata. 

Not  suit- 
able. 


Poor  sta- 
bility. 


Shallow  to 
bedrock. 


None  

None  

Flooding 
high 
water 
taole. 

None  


Gravelly 
substrata. 


Grav-elly 
substrata. 

Flood  plain  _ 


Shaly  to 
channery 
sub- 
strata. 


Sandy. 


Poor  sta- 
hilitv. 


Shaly  or 
channerv. 


Not  needed- 


Not  needed. 


High  water 
table. 


No  limita- 
tion. 


No  limita- 
tion. 

Poor  drain- 
age. 


Erodible... 


Erodible. 


Slow  perme- 
aoility. 


Not  needed-   No  limita-  Erodible. 
tion. 


Erodible. 

Erodiblf!. 
Erodible. 

Erodible. 


2  Certain  characteristics,  most  notably  slope  and  degree  of  ero-        ^  gandy  or  gravelly  layers  are  suitable  for  subgrade  or  fill  if 
sion,  affect  irrigation,  in  addition  to  those  indicated  in  this  table.     artificially  drained  or  if  the  water  table  is  low. 
For  all  practical  purposes,  only  soils  of  capability  classes  I,  II, 
and  III  are  considered  suitable  for  irrigation. 


Irrigation  soil  group  4  consists  of  fairly  shallow  soils 
over  bedrock  of  somewhat  fragmented  shale  or  schist 
that  is  generally  within  about  2  feet  of  the  surface.  These 
soils  are  highly  erodible.  Therefore,  although  the  soil 
over  bedrock  will  retain  fairly  large  amounts  of  water 
per  unit  of  depth,  the  available  space  for  water  is  limited 
and  application  rates  must  be  slow  enough  to  prevent 
further  erosion. 

In  irrigation  soil  group  5,  which  includes  a  greater 
nimiber  of  soils  from  widespread  parts  of  the  county 
than  any  other  group,  the  surface  layer  is  medium  tex- 
tured, the  subsoil  is  fairly  fine,  and  the  profile  is  at  least 
moderately  deep.  These  soils  can  absorb  water  only 
rather  slowly,  but  large  amounts  of  water  will  be  retained 
in  the  soil  and  in  the  subsoil.  Irrigation  soil  group  5 
includes  the  greater  part  of  the  better  agricultural  soils 
of  the  county. 

Irrigation  soil  group  6,  on  the  other  hand,  includes 
only  two  soils,  both  of  the  Dunmore  series.  These  soils 
have  a  friable,  silty  surface  layer,  but  a  very  heavy  and 
very  fine  subsoil.  Although  this  subsoil  is  not  a  hardpan, 
it  allows  only  very  slow  movement  of  soil  moisture; 
however,  large  amounts  of  moisture  can  be  stored.  Ap- 
plication of  water  must  be  slow  on  these  soils. 

Irrigation  soil  group  7  consists  of  the  soils  of  the  covuity 
that  have  a  fine  or  very  fine  surface  layer  and  subsoil,  with 
the  subsoil  almost  invariably  somewhat  finer  than  the 
surface  layer.  As  far  as  irrigation  management  is  con- 
cerned, the  soils  of  group  7  are  much  like  those  of  group  6. 
However,  because  the  surface  texture  is  so  fine  in  the  soils 
of  irrigation  soil  group  7,  the  irrigation  of  most  truck 
crops  is  not  recommended.  Generally,  truck  crops  are 
much  more  easily  managed  on  coarse-textured  soils,  and 


they  are  seldom  grown  on  very  fine  textured  soils,  except 
in  home  gardens. 

To  summarize,  irrigation  soil  groups  3  and  5  (especially 
the  latter)  include  most  of  the  better  agricultural  soils  of 
the  county  for  most  purposes.  These  soils  can  store  rather 
large  amounts  of  irrigation  water,  which  can  be  applied 
at  moderate  rates,  and  are  thus  perhaps  the  most  suitable 
soils  in  the  county  for  irrigation  farming.  Irrigation  soil 
groups  1,  2,  6,  and  7  should  also  give  good  returns  from 
irrigation. 

Irrigation  soil  group  4  consists  of  soils  that  are  shallow 
and  generally  rather  low  in  natural  fertility,  or  otherwise 
limited  in  usefulness.  Irrigation  on  these  soils  may  not 
be  justifiable,  except  for  some  special  crops  or  enterprises 
that  will  yield  high  returns  per  dollar  invested.  Some 
good-quality  orchard  sites,  especially  with  regard  to 
freedom  from  frost,  occur  on  some  of  these  shallow  soils, 
and  it  may  be  feasible  to  irrigate  orchai'ds  on  such  sites. 

Soil  groups  for  sewage  disposal 

Although  Washington  County  is  mostly  rural,  its 
county  seat,  Hagerstown,  is  a  growing  industrial  citj-. 
Along  with  its  industrial  growth  there  is  rapid  residential 
expansion  in  some  of  its  suburban  areas.  There  are  also 
growing  communities  in  the  county;  Smithburg  is  one 
example. 

In  any  rapid  industrial  or  residential  expansion,  one 
of  the  problems  is  disposal  of  sewage.  Wherever  complete 
systems  of  sewers  can  be  installed,  the  problems  are  not 
left  to  the  individual  landowner.  Unless  a  sewerage  sys- 
tem can  be  built,  however,  the  indi\adual  builder  or  land- 
owner generally  needs  to  arrange  for  disposal  of  sewage, 
and,  as  a  rule,  he  will  install  a  septic  tank. 


114 


SOIL  SURVEY   SERIES    1959,  NO.  17 
Tablt,  8. — Irrigdfioii  soil  (jr(nij>s\  wifli  <ulaj>t(>d  crop.'-:  and  ceiUiiii  ivafcr  irdofionshrps^ 


Irrigation  soil  grouj)  and  names  of  soils  in  each  group 


Alaxiniiini 
rate  of 

applica- 
tion on 

flatland  ^ 


Crops  locally  adapted 
for  irrigation 


Ascragc 
depth  of 
soil  to 
be  irri- 
gated 


Irrigation  soil  group  1:  Moderately  well  drained  and  well  drained  sandy 
loams — 

Ashton  fiiu^  sandy  loam,  0  to  5  percent  slopes. 

Calvin  channei-y  fine  sandy  loam,  3  to  10  jjercent  slop<'s,  moderately 
eroded. 

Chewacia  gravelly  sandy  loam.^ 
Holston  gravelly  sandy  loam,  3  to  8  {)ercent  shapes. 
Ilolston  gravelly  sandy  loam,  3  to  15  percent  slopes,  moderately 
eroded. 

Huntington  fine  sandy  loam. 

Murrill  gravelly  sandy  loam,  0  to  S  ]iercont  slopes. 

Murrill  gravelly  sandy  loam,  3  to  15  percent  slopes,  moderately 

eroded. 
Philo  gravelly  sandy  loam.'' 
Poi)e  fine  sandy  loam. 
Pope  gravc^Uy  sandy  loam. 

Waynesboro  gravelly  sandy  loam,  0  to  8  percent  slopes. 
Waynesboro  gravelly  sandy  loam,  3  to  15  percent  slopes,  moderately 
eroded. 

Irrigation  soil  group  2:'  Moderately  well  drained  loams  and  silt  loams 
with  a  tough,  dense,  or  compact  subsoil  within  about  20  inches  of  the 
surface — 

Buchanan  gravelly  loam,  0  to  3  ])ercent  slopes. 

Buchanan  gravelly  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Buchanan  gravelly  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Landisburg  cherty  silt  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Landisburg  cherty  silt  loam,  8  to  25  percent  slopes,  moderately 
eroded. 

Leadvale  gravelly  silt  loam,  0  to  3  percent  slopes. 
Leadvale  gravelly  silt  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Monongahela  gravelly  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Monongahela  gravelly  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

Monongahela  silt  loam,  0  to  3  percent  slopes. 

Monongahela  silt  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Monongahela  silt  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Trego  gravelly  silt  loam,  0  to  3  percent  slopes. 

Trego  gravelly  silt  loam,  3  to  15  percent  slopes,  moderately  eroded. 

Irrigation  soil  group  3:  Moderately  well  drained  and  well  drained,  deep 
loams  and  silt  loams  over  unconsolidated  sand,  silt,  and  gravel  sub- 
stratum— 

Chewacia  silt  loam.* 

Congaree  silt  loam  and  gravelly  loam. 

Huntington  gravelly  loam. 

Huntington  silt  loam. 

Hinitington  silt  loam,  local  alluvium. 

Largent  silt  loam."" 

Lindside  silt  loam.* 

Lindside  silt  loam,  local  alluvium.'' 

Philo  silt  loam.* 

Pope  gravelly  loam. 

Pope  silt  loam. 

Warners  loam,  0  to  8  percent  slopes.* 

Irrigation  soil  group  4:    Well-drained  to  excessively  drained,  medium- 
textured  soils  over  fragmented  bedrock  at  a  depth  of  18  to  24  inches — 
Berks  channery  loam,  ridges,  0  to  10  percent  slopes,  moderately 
eroded. 

Berks  channery  loam,  ridges,  10  to  20  percent  slopes,  moderately 
eroded. 

Berks  shaly  silt  loam,  0  to  8  percent  slopes. 


per  hour 

0.  5 
.  5 
.  5 
.  5 
.  5 

1.  0 
1.  0 
1.  0 

.  5 
.  5 
.  5 
1.  0 
.  5 


.  3 
.  3 
.  3 
.  3 
.  3 
.  5 
.  5 
.  3 


Truck  group  1  

Truck  group  2  

Truck  group  3  

Corn  

Sweet  corn  

Alfalfa  

Ladino  clover  

Grass  mi.xturc  

Irish  potatoes  

Tomatoes  

Brambles  

Orchards  (with  cover)  

Orchards  (without  cover) 


Inches 


Truck  group  1 
Truck  group  2 
Truck  group  3 

Corn  

Sweet  corn  

Ladino  clover- 
Grass  mixture. 
Tomatoes  


Truck  group  1  

Truck  group  2  

Truck  group  3  

Corn  

Sweet  corn  

Alfalfa  

Ladino  clover  

Grass  mixture  

Irish  potatoes  

Tomatoes  

Brambles  

Orchards  (with  cover)  

Orchards  (without  cover) 


Truck  group  1 
Truck  group  2 
Truck  group  3 

Corn  

Sweet  corn  

Alfalfa  

Ladino  clover. 


12 
13 
18 
24 
18 
27 
18 
18 
18 
24 
24 
27 
27 


12 
15 
18 
20 
20 
18 
18 
20 


12 
15 
18 
24 
18 
27 
18 
18 
24 
24 
24 
27 
27 


12 
15 
18 
24 
18 
24 
18 


See  footnotes  at  end  of  table. 


WASHIXCTON  COUNTY,  MAI{VL\M) 


11.-) 


'r.Mii.K  S.     I ii  i(i(tlion  soil  (jioiips,  in'l/t  dihi />/((/  mips  n/id  c(itaiii  malcr  rcldtionship.'i^-  (  oiil  iiincd 


Ii  iifj,:i(ii)ii  suil  groiij)  iiiid  naiiu's  of  soil.s  in  each  group 


Maximum 
rule  of 

ajjjjlicii- 
lion  on 

flatland  ^ 


Crops  locally  adajjlcd 
for  irritjal  ion 


Average 
depth  of 
soil  to 
be  irri- 
gated 


Irrigation  soil  group  4 — Continued 

Ucrks  shalv  silt  loam,  15  to  S  percent  slojM's,  moderately  eroded. 
Berks  sluily  silt  loam,  S  to  15  percent  slopes,  moderately  eroded. 
Berks  silt  loam,  ridges,  0  to  10  percent  slopes,  moderately  eroded. 
Berks  silt  loam,  ridges,  10  to  20  percent  slopes,  moderately  eroded. 
Calvin  channery  loam,  3  to  10  percent  slopes,  moderately  eroded. 
Calvin  channery  loam,  10  to  20  percent  slopes,  moderately  eroded 
Calvin  shaly  loam,  0  to  10  percent  slopes,  nuxlerately  eroded. 
Calvin  shaly  loam,  10  to  20  percent  slopes,  moderately  eroded. 
Calvin-Berks  channery  loams,  0  to  10  percent  slopes,  moderately 
eroded. 

Calvin-Berks  channery  loams,  10  to  20  percent  slopes,  moderately 
eroded. 

Calvin-Montevallo  shaly  loams,  0  to  10  percent  slopes,  moderately 
eroded. 

Calvin-Montevallo  shaly  loams,  10  to  20  jjercent  slopes,  moderately 
eroded. 

Chandler  silt  loam  and  channery  silt  loam,  0  to  10  percent  slopes. 
Chandler  silt  loam  and  channery  silt  loam,  3  to  10  percent  slopes, 

moderately  eroded. 
Hazel  channery  silt  loam,  0  to  10  percent  slopes,  moderately  eroded.^ 
Litz  channery  loam,  3  to  10  percent  slopes,  moderately  eroded. 
Litz  channery  loam,  10  to  20  percent  slopes,  moderately  eroded. 
Litz  shaly  loam,  0  to  10  percent  slopes. 

Litz  shaly  loam,  3  to  10  percent  slopes,  moderately  eroded. 
Litz  shaly  loam,  10  to  20  percent  slopes,  moderately  eroded. 
Litz-Teas  channery  silt  loams,  0  to  8  percent  slopes. 
Litz-Teas  channery  silt  loams,  8  to  15  percent  slopes,  severely 
eroded. 

Montevallo  shaly  loam,  0  to  10  percent  slopes,  moderately  eroded. 
Talladega  gravelly  silt  loam,  thick  solum  variant,  0  to  20  percent 
slopes,  moderately  eroded. 

Irrigation  soil  group  5:    Well-drained  loams  and  silt  loams  with  moder- 
ately fine  subsoil  underlain  by  bedrock  or  unconsolidated  material — 
Braddock  and  Thurmont  gravelly  loams,  3  to  8  percent  slopes, 

moderately  eroded. 
Braddock  and  Thurmont  gravelly  loams,  8  to  15  percent  slopes, 

moderately  eroded. 
Duffield  silt  loam,  0  to  3  percent  slopes. 

Dufficld  silt  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Duffield  silt  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Edgemont  and  Laidig  channery  loams,  0  to  12  percent  slopes. 
Edgemont  and  Laidig  channery  loams,  5  to  20  percent  slopes,  mod- 
erately eroded. 

Elliber  cherty  loam,  5  to  12  percent  slopes,  moderately  eroded. 
Elliber  cherty  loam,  12  to  25  percent  slopes,  moderately  eroded. 
Etowah  gravelly  loam,  0  to  3  percent  slopes. 

Etowah  gravelly  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Etowah  gravelly  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Etowah  silt  loam,  0  to  3  percent  slopes. 

Etowah  silt  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Etowah  silt  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Fauquier  channery  loam,  0  to  5  percent  slopes. 

Fauquier  channery  loam,  5  to  10  percent  slopes,  moderately  eroded. 
Fauquier  channery  loam,  10  to  20  percent  slopes,  moderately  eroded. 
Fauquier  silt  loam,  0  to  3  percent  slopes. 

Faucjuier  silt  loam,  3  to  10  percent  slopes,  moderately  eroded. 
Fauquier  silt  loam,  10  to  20  percent  slopes,  moderately  eroded. 
Frankstown  and  Duffield  channery  silt  loams,  0  to  3  percent  slopes. 
Frankstown  and  Duffield  channery  silt  loams,  3  to  8  percent  slopes, 
moderately  eroded. 

See  footnotes  at  end  of  table. 


Inches 
per  hour 

0.  6 
.  3 
.  3 
.  6 
.  3 


Inchtg 


Grass  mixture  

Tomatoes  

Brambles  

Orchards  (with  cover)  

Orchards  (without  cover). 


Truck  group  1  

Truck  group  2  

Truck  group  3  

Corn  

Sweet  corn  

Alfalfa  

Ladino  clover  

Grass  mixture  

Irish  potatoes  

Tomatoes  

Brambles  

Orchards  (with  cover)  

Orchards  (without  cover) 


18 
24 
24 
24 
24 


12 
15 
18 
24 
18 
27 
18 
18 
24 
24 
24 
27 
27 


110  SOIL   SUKVEY  SERIES    1959,  NO.  17 

Table  8. — Irrigation  soil  groups  with  adapted  crops  and  certain  water  relationships ' — Continuod 


Irrigation  soil  group  and  names  of  soils  in  each  groiij) 


Maximum 
rate  of 
applica- 
tion on 
flalland  ^ 


Crops  locally  adapted 
for  irrigation 


Average 
depth  of 
soil  to 
be  irri- 
gated 


Average 
available 
moisture 
capacity 
to  dei>th 
indicated  ^ 


Irrigation  soil  group  5 — ('onlinued 

Frankstown  and  Dullield  channery  silt  loams,  S  to  15  percent  slopes, 

moderately  eroded. 
Frederick  cherty  silt  loam,  0  to  8  percent  slopes,  moderately  eroded. 
Frederick  cherty  silt  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Hagerstown  silt  loam,  0  to  3  percent  sloi)es. 

Ilagcrstown  silt  loam,  0  to  8  ])ercent  slopes,  moderately  eroded. 
Hagerstown  silt  loam,  8  to  15  percent  slopes,  moderately  eroded, 
lligiifield  gravelly  loam,  0  to  5  ])ercent  slojjes. 

Highfield  gravelly  loam,  5  to  10  percent  slopes,  moderately  eroded, 
llighfield  gravelly  loam,  10  to  20  j^ercent  slopes,  moderately  eroded, 
llolston  gravelly  loam,  0  to  3  percent  slojies. 

Holston  gravelly  loam,  0  to  8  percent  slopes,  moderately  eroded, 
llolston  gravelly  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Holston  silt  loam,  0  to  3  ])ereent  slopes. 

llolston  silt  loam,  3  to  8  percent  slopes,  moderately  eroded, 
llolston  silt  loam,  8  to  15  ])ercent  slopes,  moderately  eroded. 
I.aidig  gravelly  loam,  0  to  3  percent  slopes. 

Tjaidig  gravelly  loam,  3  to  8  ])ercent  slo])es,  moderately  eroded. 
Laidig  gravelly  loam,  8  to  15  jjcrcent  slopes,  moderately  eroded. 
IMurrill  gravelly  loam,  0  to  3  percent  slopes. 

Murrill  gravelly  loam,  0  to  8  percent  slopes,  moderately  eroded. 
Murrill  gravelly  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Mnrrill  silt  loam,  0  to  3  ))ercent  slojjes. 

Murrill  silt  loam,  0  to  8  percent  slo])es,  moderately  eroded. 
Alurrill  silt  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Myersville  channery  loam,  0  to  3  pcneent  slopes. 

Alyersv-ille  channerv  loam,  3  to  10  percent  slopes,  moderately  eroded. 
Mj^ersville  channery  loam,   10  to  20  percent  slopes,  moderately 
eroded. 

Myersville  silt  loam,  0  to  3  percent  slopes. 

Myersville  silt  loam,  3  to  10  percent  slopes,  moderately  eroded. 
Myersville  silt  loam,  10  to  20  percent  slopes,  moderately  eroded. 
Thurmont  gravelly  loam,  3  to  8  jjercent  slopes,  moderately  eroded. 
Thvirmont  gravelly  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Waynesboro  gravelly  loam,  0  to  3  percent  slopes. 
Waynesboro  gravelly  loam,  0  to  8  percent  slopes,  moderately  eroded. 
Waj-nesboro  gravelly  loam,  8  to  15  [percent  slopes,  moderately  eroded. 
Westmoreland  channery  silt  loam,  3  to  10  percent  slopes,  moder- 
ately eroded. 

Westmoreland  channery  silt  loam,  10  to  20  jjercent  slopes,  moder- 
ately erod(>d. 

Irrigation  soil  group  6:    Well-drained  silt  loams  with  a  thick,  very  fine- 
textured  subsoil  underlain  by  bedrock — 

Dunmore  cherty  silt  loam,  3  to  8  percent  slopes,  moderately  eroded 
Dunmore  cherty  silt  loam,  S  to  15  percent  slopes,  moderately  eroded 


Inches 
per  hour 


0.  3 

.  3 

.  3 

.  3 

.  3 

.  5 

.  5 

.  5 

.  3 

.  3 

.  3 

.  5 

.  3 


Inches 


Truck  group  1  

Truck  group  2  

Truck  group  3  

Corn  

Sweet  corn  

.Alfalfa  

Ladino  clover  

Grass  mixture  

Irish  potatoes  

Tomatoes  

Brambles  ,  - 

Orchards  (with  cover)  

Orchards  (without  cover) 


12 
15 
18 
24 
18 
27 
18 
18 
18 
24 
24 
27 
27 


See  footnotes  at  end  of  table. 


WASllI.\(i  COUNTY,  MAHYLA.ND 

TAifiiK  S.    Iiii(j(tlii>n  soil  (jroups,  vu'/li  (nhiphil  crojts  (iiul  ccrtdiii  water  relatiomhipH^ — Conliiiucd 


I  17 


Maximum 

.\  vorage 

Avcrugf! 

rate  of 

depth  of 

available 

Irrigation  soil                  ihi'iil's  of  soils  in  cacli  H'onj) 

api)lica- 

Crojjs  locally  adapted 

soil  to 

moisture 

tion  on 

for  irrigation 

be  irri- 

capacity 

flatland 

gated 

to  depth 

indicated  ' 

Tncfus 

peT  hour 

Corn  

Inches 

Inchts 

Irrigation  soil  group  7:    \\ Cll-draincfl  siltv  clay  loams  and  clay  loams  with 

0.  3 

24 

4.  0 

a  tine  to  \  ('ry  line-text iirrd  snl)soil  nndcrlain  by  bedrock — 

.  3 

Hweet  corn  

18 

3.  0 

Henevola  cla\'  loam,  0  to    percent  slopes 

.  5 

Alfalfa  

27 

4.  5 

Benevola  clay  loam,  3  to  8  percent  slopes,  moderately  eroded. 

.  5 

Ladino  clover  

18 

3.  0 

Benevola  clay  loam,  8  to  15  percent  slopes,  nioderateh'  eroded. 

.  5 

Grass  mixture..  -  . 

18 

3.  0 

Corydon  clay  loam,  0  to  '.i  i)ercent  slopes. 

.  3 

Irish  potatoes  .  

18 

3.  0 

Corydon  clay  loam,  3  to  8  jxjrcent  slopes,  moderately  eroded. 

.  3 

Tomatoes  

24 

4.  0 

Corydon  clay  loam,  8  to  1 5  percent  slopes,  moderately  eroded. 

.  3 

Brambles  

24 

4.  0 

Hagerstown  clay  loam,  0  to  3  percent  slopes. 

.  5 

Orchards  (with  cover)  

27 

4.  5 

Ilagerstown  clay  loam,  0  to  8  percent  slopes,  moderately  eroded. 

.  3 

Orchards  (without  cover).. 

27 

4.  5 

Hagerstown  clay  loam,  8  to  1 5  jjcrcent  slojies,  moderately  eroded. 

Hagerstown  silty  clay  loam,  (1  to  3  percent  slopes. 

Hagerstown  silty  clay  loam,  0  to  8  percent  slopes,  moderately  eroded. 

Hagerstown  silty  clay  loam,  S  to  15  percent  slopes,  moderately  eroded. 

'  Only  the  best  croplands  of  Washington  County,  moderately 
well  drained  or  better,  and  suitable  for  more  or  less  continuous 
cultivation  (capability  classes  I,  II,  and  III)  are  listed  in  this 
table.    Xo  severely  eroded  soils  are  listed. 

2  Maximum  rates  of  water  application  do  not  apply,  except 
under  ideal  conditions  on  flatlands.  The  application  must  be 
reduced  to  suit  specific  site  conditions  based  on  soil  structure, 
slope,  erosion,  cropping  system,  past  history  of  the  area  to  be  irri- 
gated, and  othe  factors. 

^  The  figures  for  available  moisture  capacities  are  strictly  esti- 
mates, and  these  are  intended  to  be  averages  for  all  soils  of  the 
group.  There  are  some  variations  between  soils  within  a  group, 
particularly  between  those  of  different  structure  or  different  slope 
and  degrees  of  erosion. 


*  These  soils  are  only  moderately  well  drained  at  best.  Adequate 
artificial  drainage  practices  must  be  applied,  in  most  instances, 
to  make  these  soils  suitable  for  irrigation.  These  soils  are  not 
considered  suitable  for  alfalfa,  Irish  potatoes,  brambles,  or  orchards. 

*  All  soils  of  this  group  will  need  adequate  artificial  drainage  to 
make  them  suitable  for  irrigation.  They  are  not  considered  suitable 
for  alfalfa,  Ii-ish  potatoes,  brambles,  or  orchards. 

"  The  Hazel  channery  silt  loam  is  seldom  much  more  than  12 
inches  deep  over  bedrock.  If  irrigation  is  to  be  used  on  this  soil, 
no  more  water  should  be  applied  than  can  be  stored  within  this 
12-inch  surface  layer. 


Many  individual  householders,  particularly  in  suburbs 
of  great  cities,  have  built  septic  tank  systems  that  later 
failed.  Most  of  the  failures  occurred  during  wet  seasons. 
Some  of  them  occurred  after  an  initial  period  during 
which  the  system  appeared  to  function  properly.  In- 
vestigations have  disclosed  tliat  many,  if  not  nearly  all, 
of  these  failures  occurred  in  soils  that  are  not  well  drained 
or  that  contain  a  dense  or  fine-texttired  subsoil.  In  such 
a  soil  the  movement  of  effluent  liquid  from  a  septic  tank 
is  slow.  In  wet  weather  and  for  a  long  time  after  wet 
weather,  the  soil  is  saturated,  the  water  table  stands  near 
the  surface,  and  there  is  no  available  space  for  the 
effluent.  JNIany  a  householder  has  discovered,  to  his  dis- 
may, that  a  septic  tank  installed  during  dry  weather 
failed  to  function  after  any  considerable  period  of  rain. 

Other  failures  have  occurred  where  the  soil  is  steep 
(generally  more  than  8  percent  slope),  shallow  to  bedrock 
or  to  a  dense  substratum,  or  subject  to  seasonal  flooding 
by  overflowing  streams.  Such  failures  have  been  fewer, 
however,  than  those  resulting  from  a  water  table  or  a 
slowly  permea1)le  soil  because  they  have  been  more  readily 
foreseen. 

Soil  scientists,  health  officers,  and  others  have  worked 
together  to  find  out  the  significance  of  soil  characteristics 
that  can  be  observed  before  a  septic  tank  is  installed. 
The  factors  that  limit  and  tliose  that  favor  the  function- 
ing of  septic  tanks  have  been  used  to  characterize,  at 
least  in  part,  the  soils  of  Washington  County.  Ex- 


perience has  shown  that  modern  soil  survey  maps,  the 
kind  published  with  this  report,  can  be  used  to  predict 
the  behavior  of  a  septic  tank  system  with  a  high  degree 
of  accuracy.  It  is  always  necessary,  however,  to  examine 
the  soil  at  the  exact  site.  A  small,  included  area  of  an 
unfavorable  soil,  too  small  to  be  shown  on  the  map,  might 
be  there. 

The  general  suitabilities  of  soils  for  septic  tank  sites 
are  indicated  in  column  5  of  table  7.  However,  it  is 
explained  in  a  footnote  to  table  7  that  ratings  of  fair 
or  good,  as  given  in  the  table,  should  apply  only  to  the 
areas  of  slopes  of  not  more  than  8  percent.  These  ratings 
are  recorded  alphabetically  by  soil  series  in  table  7;  hence, 
no  particular  classification  or  grouping  is  apparent  there. 

The  soils  of  AVashington  County  have  also  been  grouped 
as  to  their  suitability  for  sewage  disposal.  Eight  groups 
have  been  made  for  this  purpose. 

SOIL  GROUP  1  FOR  SEWAGE  DISPOSAL 

The  soils  of  group  1  for  sewage  disposal  have  few, 
if  any,  limitations  for  this  use.  They  are  deep,  well- 
drained  soils  over  a  friable  substratum  that  consists  of 
deeply  weathered  rock  or  other  unconsolidated  materials. 
There  is  no  hindrance  to  the  movement  of  water  or  of 
effluent,  normally,  to  a  depth  of  at  least  6  feet.  There 
are  few,  if  any,  failures  of  individual  tanks  on  these  soils. 
Some  of  the  soils  have  a  rather  fine-textured  sitbsoil  that 
is  somewhat  limited  in  permeability. 


118 


SOIL  SURVEY  SERIES    195  9,  NO.  17 


Although  there  should  be  no  difficulty  with  an  in- 
dividual, family-size  septic  tank,  it  is  possible  that  dif- 
ficidty  might  develop  if  a  number  of  tanks  were  con- 
centrated in  a  small  area.  This  might  occur  where  lots 
are  small,  as  in  a  closely  spaced  residential  development. 
The  soils  in  this  group  that  might  develop  dilHculties 
uiuler  such  conditions  are  those  of  the  Benevola,  Etowah, 
and  Ilagerstown  series,  and  perhaps  some  areas  of  soils 
of  the  Duffield,  Frankstown,  and  Murrill  series.  It 
should  also  be  pointed  out  that  occasional  ledges  of  lime- 
stone may  be  encountered  in  some  of  the  soils  in  group  1. 
Ledges  will  help  determine  the  exact  location  of  an 
individual  septic  tank. 

Tlie  soils  in  group  1  for  sewage  disposal  are  given  in 
the  following  list.  A  few  of  the  soils  have  slopes  greater 
than  8  percent,  but  tlieir  characteristics  fit  better  with 
soils  of  this  group  than  witli  any  other. 

Benevola  clay  loam,  0  to  8  percent  slopes. 

Benevola  clay  loam,  3  to  8  percent  sloi)es,  moderately  eroded. 

Braddock  and  Tliurnkont  sraveliy  loams,  3  to  S  percent  slopes, 

miideiately  eroded. 
Unttield  silt  loam,  0  to  3  percent  slopes. 

Duffield  silt  loam.  3  to  8  percent  slopes,  moderately  eroded. 
Edgemont  and  Laidis  channery  loams,  0  to  12  percent  slopes. 
Edgemont  and  I^aidis  very  stony  loams,  0  to  5  percent  slopes. 
Etowab  gravelly  loam,  0  to  3  percent  slopes. 

Etowah  gravelly  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Etowah  silt  loam,  0  to  3  percent  slopes. 
Etowah  silt  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Fauquier  channery  loam,  0  to  5  percent  slopes. 
Fauquier  channery  loam,  5  to  10  percent  slopes,  moderately 
eroded. 

Fauquier  silt  loam,  0  to  3  percent  slopes. 
Faucpiier  silt  loam,  3  to  10  percent  slopes,  moderately  eroded. 
Frankstown  and  Duffield  channery  silt  loams,  0  to  3  percent 
slopes. 

Frankstown  and  Duffield  channery  silt  loams,  3  to  8  percent 

slopes,  moderately  eroded. 
Frankstown  and  Duffield  channery  silt  loams,  0  to  8  percent 

slopes,  severely  eroded. 
Frederick  cherty  silt  loam,  0  to  8  percent  slopes,  moderately 

eroded. 

Hagerstowu  clay  loam,  0  to  3  percent  slopes. 

Hagerstown  clay  loam,  0  to  8  percent  slopes,  moderately  eroded. 
Hagerstown  clay  loam,  3  to  8  percent  slopes,  severely  eroded. 
Hagerstown  silt  loam,  0  to  3  percent  slopes. 
Hagerstown  silt  loam,  0  to  8  percent  slopes,  moderately  eroded. 
Hagerstown  silty  clay  loam,  0  to  3  percent  slopes. 
Hagerstown  silty  clay  loam,  0  to  8  percent  slopes,  moderately 
eroded. 

Hagerstown,  Corydou,  and  Duffield  very  rocky  silt  loams,  0  to  3 

percent  slopes. 
Highfleld  gravelly  loam,  0  to  5  percent  slopes. 
Highfield  gravelly  loam,  5  to  10  percent  slopes,  moderately  eroded. 
Highfleld  very  stony  loam,  0  to  5  percent  slopes. 
Holston  gravelly  loam,  0  to  3  percent  slopes. 
Holston  gravelly  loam,  0  to  8  percent  slopes,  moderately  eroded. 
Holston  gravelly  sandy  loam,  3  to  8  percent  slopes. 
Holston  gravelly  sandy  loam,  3  to  1.5  percent  slopes,  moderately 

eroded. 

Holston  silt  loam,  0  to  3  percent  slopes. 

Holston  silt  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Laidig  gravelly  loam,  0  to  3  percent  slopes. 
Laidig  gravelly  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Murrill  gravelly  loam,  0  to  3  percent  slopes. 
Murrill  gravelly  loam,  0  to  8  percent  slopes,  moderately  eroded. 
Murrill  gravelly  sandy  loam,  0  to  8  percent  slopes. 
Murrill  gravelly  sandy  loam,  3  to  15  percent  slopes,  moderately 
eroded. 

Murrill  silt  loam,  0  to  3  percent  slopes. 

Murrill  silt  loam,  0  to  8  percent  slopes,  moderately  eroded. 
Myersville  channery  loam,  0  to  3  percent  .slopes. 
Myersville  channery  loam,  3  to  10  percent  slopes,  moderately 
eroded. 


Myersville  channery  silt  loam,  3  to  10  percent  slopes,  .sevei-ely 
eroded. 

Myersville  silt  loam,  0  to  3  percent  slopes. 

Myersville  silt  loam,  3  to  10  percent  .slopes,  moderately  eroded. 
Tliurmont  gravelly  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Waynesboro  gravelly  loam,  0  to  3  percent  slopes. 
Waynesboro  gravelly  loam,  0  to  8  percent  slopes,  nuMlerately 
eroded. 

Waynesboro  gravelly  sandy  loam,  0  to  8  peix-ent  slopes. 
Waynesboro  gravelly  sandy  loam,  3  to  15  percent  slopes,  moder- 
ately eroded. 

Westmoreland  channery  silt  loam,     to  10  jierccnt  slopes,  moder- 
ately eroded. 

SOIL  GROUP  2  FOR  SEWAGE  DISPOSAL 
The  soils  of  grouj)  2  for  sewage  dis[)()sal  have  the  same 
general  characteristics  as  those  of  group  1,  except  that 
the  slopes  of  nearly  all  of  them  are  between  8  and  15  per- 
cent. The  steeper  soils  are  less  desirable  for  sewage  dis- 
posal fields  than  those  of  group  1.  There  is  greater 
danger  of  downslope  pollution,  and  the  slope  increases 
the  costs  of  excavating  and  grading.  Tlie  soils  of  the 
Benevola,  Duffield,  Etowah,  Frankstown,  Hagerstown, 
and  ^furrill  series  are  somewhat  less  favorable  than  the 
other  soils  of  the  group.  In  spite  of  these  limitations,  the 
soils  of  group  2  for  sewage  disposal  are  rated  as  fairly 
suitable  for  this  purpose. 

Some  of  the  soils  in  group  2  have  a  range  of  slope 
less  than  8  percent  or  greater  than  15  percent,  but  their 
characteristics  fit  better  with  soils  of  this  group  than 
with  any  other. 

Benevola  clay  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Benevola  clay  loam,  8  to  15  percent  slopes,  .severely  eroded. 
Braddock  and  Thurmont  gravelly  loams,  8  to  15  percent  slopes, 

moderately  eroded. 
Duffield  extremely  rocky  silt  loam,  0  to  15  percent  slopes. 
Duffield  silt  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Duffield  silt  loam,  8  to  25  percent  slopes,  severely  eroded. 
Duffield  very  rocky  silt  loam,  3  to  15  percent  slopes. 
Edgemont  and  Laidig  channery  loams,  5  to  20  percent  slopes, 

moderately  eroded. 
EUiber  cherty  loam,  5  to  12  percent  slopes,  moderately  eroded. 
Etowah  gravelly  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Etowah  silt  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Fauquier  channery  loam,  10  to  20  percent  slopes,  moderately 

eroded. 

Fauquier  silt  loam,  10  to  20  percent  slopes,  moderately  eroded. 
Frankstown  very  rocky  silt  loam,  3  to  15  percent  slopes,  moder- 
ately eroded. 

Frankstown  very  rocky  silt  loam,  8  to  15  percent  slopes,  severely 
eroded. 

Frankstown  and  Duffield  channery  silt  loams,  8  to  15  percent 

slopes,  moderately  eroded. 
Frankstown  and  Duffield  channery  silt  loams,  8  to  15  percent 

slopes,  severely  eroded. 
Frederick  cherty  silt  loam,  8  to  15  percent  slopes,  moderately 

eroded. 

Frederick  cherty  silt  loam,  8  to  15  percent  slopes,  severely  eroded. 
Hagerstown  clay  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Hagerstown  clay  loam,  8  to  15  percent  slopes,  severely  eroded. 
Hagerstown  silt  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Hagerstown  silty  clay  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

Hagerstown  very  rocky  silt  loam,  3  to  15  percent  slopes,  moder- 
ately eroded. 

Hagerstown  very  rocky  silty  clay  loam,  3  to  15  percent  slopes, 

moderately  eroded. 
Hagerstown  very  rocky  silty  clay  loam,  8  to  1.5  percent  slopes, 

severely  eroded. 

Highfield  gravelly  loam,  10  to  20  percent  slopes,  moderately 
eroded. 

Holston  gravelly  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Holston  gravelly  sandy  loam,  8  to  15  percent  slopes,  severely 
eroded. 


WASHINGTON  COUNTY,  MARYLAND 


IIolsloii  silt  loiiin,  8  to  15  porcoiit  slopes,  inodcrjiloly  eroded, 
liiiidi};  Ki'avelly  loiiin,  8  to  15  i)erceiit  sloiics,  iiioderalely  eroded. 
Murrill  gravelly  loam,  8  to  15  iiereeut  sloj)e8,  moderately  eroded. 
]M\irrill  gravelly  sandy  loam,  8  to  15  i)ereeiit  sIoik's,  severely 
eroded. 

.Mm-rill  sill  luaiii,  8  to  15  jierceiit  slopes,  iiiodoi'ately  eroded. 
-Myersville  chaiiiiery  Iciam.   Id  l<i  lid  jxTceiit  slopes,  moderately 
eroded. 

Myersville  silt  loam.  Id  to  20  percent  slojies,  moderately  eroded. 
'I'alladega  gravelly  silt  loam,  thick  solum  variant,  0  to  20  percent 

slopes,  moderately  eroded. 
Tluirmout    gravelly   loam,   S   to   15    percent   slopes,  moderately 

eroded. 

Waynesboro  gi-avelly  loam.  S  to  15  percent  slopes,  moderately 
eroded. 

A\'a.\  nesboro  gravelly  loam,  3  to  15  percent  slopes,  severely  eroded. 
Waynesboro  gravelly  sandy  loam,  8  to  15  percent  slopes,  severely 
eroded. 

Westmoreland    cliannery    silt    loam.    10    to    20    percent  slopes, 

modi'rati'ly  eroded. 
Westmoreland  channery  silt  loam,  3  to  20  percent  sloi)es,  severely 

eroded. 

SOIL  GROUP  3  FOR  SEWAGE  DISPOSAL 

Tlie  soils  of  jjroup  3  for  sewage  disposal  are  of  poor  to 
very  poor  suitability  for  this  purpose  because  they  are  too 
steep.  In  some  selected  spots,  if  a  very  large  area  is 
available  for  dispersal,  some  successful  disposal  units 
miglit  be  established.  In  general,  however,  the  soils  of 
this  group  should  be  avoided  in  selecting  sites  for  septic 
tanks. 

Most  of  the  soils  in  group  3  have  slopes  greater  than 
15  percent.  Several  of  the  mapi^ing  units  include  some 
soils  having  gentler  slopes,  but  they  are  so  stony  or  sev- 
erely eroded  that  they  fit  with  the  steeper  soils  in  their 
suitability  for  sewage  disposal. 

Braddock  and  Thurmont  gravelly  loams,  15  to  25  percent  slopes. 
Dekalb  and  Leetonia  very  stony  sandy  loams,  0  to  25  percent 
slopes. 

Dekalb  and  Leetonia  very  stony  sandy  loams,  25  to  45  percent 
slopes. 

Dekalb  and  Leetonia  very  stony  sandy  loams,  45  to  60  percent 
slopes. 

Dekalb  and  Lehew  very  stony  loams,  0  to  25  percent  slopes. 
Dekalb  and  Lehew  very  stony  loams,  25  to  45  percent  slopes. 
Dufiield  silt  loam,  15  to  25  percent  slopes,  moderately  eroded. 
Duffield  very  rocky  silt  loam,  8  to  45  percent  slopes,  moderately 
eroded. 

Edgemont  and  Laidig  channery  loams,  20  to  35  percent  slopes, 
moderately  eroded. 

Edgemont  and  Laidig  channery  loams,  35  to  GO  percent  slopes, 
moderately  eroded. 

Frankstown  extremely  rocky  silt  loam,  0  to  25  percent  slopes. 

Frankstown  extremely  rocky  silt  loam,  25  to  45  percent  slopes. 

Frankstown  very  rocky  silt  loam,  15  to  45  percent  slopes,  moder- 
ately eroded. 

Frankstown  and  Duffield  channery  silt  loams,  15  to  25  percent 

slopes,  moderately  eroded. 
Frankstown  and  Duffield  channery  silt  loams,  15  to  25  percent 

slopes,  severely  eroded. 
Frankstown  and  Duffield  channery  silt  loams,  25  to  45  percent 

slopes,  moderately  eroded. 
Frankstown  and  Duffield  channery  silt  loams,  25  to  45  percent 

slopes,  severely  eroded. 
Frederick  cherty  silt  loam,  15  to  25  percent  slopes,  moderately 

eroded. 

Frederick  cherty  silt  loam,  15  to  25  percent  slopes,  severely 
eroded. 

Frederick  cherty  silt  loam,  25  to  45  percent  slopes,  moderately 
eroded. 

Hagerstown  clay  loam,  15  to  25  percent  slopes,  moderately  eroded. 
Hagerstown  clay  loam,  15  to  25  percent  slopes,  severely  eroded. 
Hagerstown  extremely  rocky  silt  loam,  0  to  25  percent  slopes, 

moderately  eroded. 
Hagerstown  extremely  rocky  silty  clay  loam,  0  to  25  percent 

slopes,  moderately  eroded. 


Hagerstown  extremely  rocky  .soils,  25  to  45  percent  slojies. 
Hagerstown  silt  loam,  15  to  25  jiercent  slojies,  moderately  <'rode:l. 
Hagerstown  silty  day  loam,  15  to  25  jiercent  slopes,  modrTately 
eroded. 

Hagerstown  \ery  rocky  silt  loam,  15  to  15  jiercent  slojies,  moder- 
atel.v  eroded. 

Hagerstown  vei'.v  rocky  silty  clay  loam,  15  to  15  jiercent  slojies, 

mo(leralel.v  eroded. 
Hagerstown  ver.v  rock.v  soils,  45  to  55  jiercent  slopes. 
Hagerstown  and   Dullield  silt  loams,  25  to  45  percent  slojies, 

moderately  erode(l. 
Higlilii'ld   gravelly   l<iani.    2d   to         jiei-i-eiit    sbijies,  iijoderatel.v 

eroded. 

Higlitield  very  stony  loam,  5  to  30  jiercent  slojies. 
Iliglilield  very  stony  loam,  30  to  45  jiercent  slojies. 
Hoist  on  gravelly  loam,  8  to  25  percent  slojies,  .severely  eroded. 
Holston    gravelly    loam,    15   to   25   percent   slopes,  moderately 
er<ide(l. 

Holston  gravelly  loam,  25  to  45  percent  slojies,  moderately  eroded. 
Laidig  gravelly  loam,  15  to  25  percent  slojies,  moderately  eroded. 
I..il(lig  very  stony  loam,  8  to  25  jiercent  slojies. 
I.aidig  very  stony  loam,  15  to  45  percent  slopes,  moderately  eroded. 
Murrill  gravelly  loam,  15  to  25  jiercent  slojies,  moderately  eroded. 
Murrill  gravell.v  loam,  25  to  45  percent  slojies,  moderately  eroded. 
Murrill  gravelly  loam,  8  to  25  percent  slopes,  severely  eroded. 
Murrill  gravelly  sandy  loam,  15  to  25  jiercent  slopes,  moderately 
er<i(led. 

!Miu-rill  gravelly  sandy  loam,  15  to  25  jiercent  slopes,  severely 
eroded. 

^Myersville  channery  loam.  2d  to  30  jiercent  slopes,  moderately 
eroded. 

Myersville  channery  loam,  3d  to  45  percent  slojies,  moderately 
eroded. 

Myersville  channery  silt  loam.  10  to  .30  jiei-cent  slopes,  severely 
eroded. 

Myersville  very  stony  loam,  3  to  30  percent  slopes,  moderately 
eroded. 

Myersville  ver.v  stony  loam,  30  to  55  percent  slopes,  eroded. 
Rocky  eroded  land. 
Stony  rolling  land. 
Stony  steep  land. 

Talladega   gravelly   silt   loam,   thick   solum   variant,   10  to  20 

Jiercent  slopes,  severely  eroded. 
Talladega  gravelly  silt  loam,  thick  solum  variant,  20  to  30  percent 

slopes. 

Talladega  gravelly  silt  loam,  thick  solum  variant,  20  to  45  percent 

slopes,  moderately  eroded. 
Waynesboro  gravelly  loam,  15  to  25  percent  slopes,  moderately 

eroded. 

Waynesboro  gravelly  loam,  15  to  25  percent  slopes,  severely 
eroded. 

Waynesboro  gravelly  loam,  25  to  45  percent  slopes,  moderately 
eroded. 

Waynesboro  gravelly  sandy  loam,  15  to  25  percent  slopes,  moder- 
ately eroded. 

Westmoreland  channery  silt  loam,  20  to  30  percent  slopes,  moder- 
ately eroded. 

Westmoreland  channery  silt  loam.  20  to  30  jiercent  slopes,  severe- 
ly eroded. 

SOIL  GROUP  4  FOR  SEWAGE  DISPOSAL 
Soil  group  4  for  sewage  disposal  consists  of  shallow 
to  moderately  deep  soils  of  the  uplands;  slopes  are  no 
greater  than  8  to  10  percent.  The  soils  are  underlain  by 
bedrock  or  by  slowly  permeable  clay,  generally  within 
3  feet  of  the  surface.  They  are  not  subject  to  flooding. 

Soils  of  group  4  are  intermediate  in  their  suitability 
for  sewage  disposal ;  they  can  be  rated  as  fair,  although 
some  spots  are  poor.  These  soils  are  well  drained,  and 
most  of  them  are  readily  permeable,  but  they  are  under- 
lain by  bedrock  or  by  heavy  clay  at  a  shallow  or  moder- 
ate depth.  There  is  not  enough  space  between  the  surface 
and  the  bedi'ock  or  other  dense  substratum  for  a  large 
amount  of  effluent.  Some  successful  disposal  units  can  be 
established  on  these  soils,  but  the  fields,  in  general,  have  to 


SOIL   SUKXKV    SKKIKS    1  !».")!>,   JVO.  17 


be  nuK'li  larg-er  tlian  on  the  luoie  suitable  soils  of  sewage 
disposal  soil  group  1.  Exaniiuation  of  the  particular 
site  is  especially  needed.  There  is  danger  of  oversatura- 
tion  of  (he  soil  with  sewage,  and  thus  considerable  danger 
of  pollution  of  other  soil  areas  and  of  water  supplies. 
The  CorvdoM  and  Dunniore  soils  are  somewhat  less  per- 
nieabl(>  tliau  the  other  soils  of  this  group. 

Rerks  chaniuM-y  loam,  ridfjcs,  0  to  10  percent  .slopes,  moderately 
eroded. 

P>i'rl<s  slialy  sill  loam,  0  to  8  i)erceiit  slo])es. 

]!erl<s  slialy  silt  loam,  ;{  to  8  percent  slopes,  moderately  eroded. 
I?erks  silt  loam,  ridges,  0  to  10  percent  slopes,  moderately  eroded. 
Calvin  channery  line  sandy  loam,  'A  to  10  percent  slopes,  moder- 
ately eroded. 

Calvin  channery  loam,  3  to  10  i)ercent  slopes,  moderately  erofled. 
Calvin  shaly  loam,  0  to  10  percent  .slopes,  moderately  eroded. 
Calviii-Iierks  cliannery  loams,  0  to  10  percent  slopes,  moderately 
eroded. 

Calvin-Montevallo  slialy  loams,  0  lo  10  percent  slopes,  moder- 
ately eroded. 

Chandler  silt  loam  and  cli.niiiery  silt  loam,  0  to  10  percent  slopes. 
Chandlei-  silt  loam  and  channery  silt  loam,  3  to  10  percent  slopes, 

moderately  eroded. 
Corydon  clay  loam,  0  to  3  percent  slopes. 

Corydon  clay  loam,  3  to  S  percent  slopes,  moderately  eroded. 
Dunmore  cherty  silt  loam,  3  to  8  percent  slopes,  moderately 
eroded. 

Litz  channery  loam,  3  to  10  percent  slopes,  moderately  eroded. 
Litz  shaly  loam,  0  to  10  percent  slojjes. 

I;itz  shaly  loam.  3  to  10  percent  slopes,  moderately  eroded. 
l.itz-Teas  ch.inni'i-y  silt  loams,  0  to  S  percent  slopes. 
Montevallo  shaly  loam,  0  to  10  percent  sloi)es,  moderately  eroded. 

SOIL  GROUP  5  FOR  SEWAGE  DISPOSAL 

Soil  gioup  5  for  sewage  disposal  consists  of  soils  that 
are  like  those  of  group  4,  except  in  slope.  Their  slopes 
generally  range  from  8  to  20  percent. 

Soils  of  group  5  are  very  ))oor  for  sewage  disposal. 
Lateral  movement  of  eOluent  is  likely  to  be  rapid.  Thus, 
active  organisms  of  the  sewage  can  easily  reach  the  sur- 
face by  see])age  and  cause  serious  risk  of  pollution. 

Berks  (  h.innery  loam,  ridges,  10  to  20  percent  slopes,  moderately 
eroded. 

Berks  channery  loam,  ridges,  10  to  20  jjercont   sloi)es,  severely 
eroded. 

Berks  shaly  silt  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Berks  .silt  loam,  ridges.  10  to  20  percent  slopes,  moderately  eroded. 
Berks  silt  loam,  ridges,  10  to  20  percent  slopes,  severely  eroded. 
Calvin  channery  loam,  10  to  20  percent  slopes,  mocterately  eroded. 
Calvin  shaly  loam,  10  to  20  percent  sl()i)es,  moderately  eroded. 
Calvin  shaly  loam,  10  to  20  percent  slopes,  severely  eroded. 
Calvin-Berks  channery  loams,  10  to  20  percent  slopes,  moderately 
eroded. 

Calvin-Berks  thannery  loams,  3  to  20  percent  slopes,  severely 
eroded. 

Calvin-^Iontevallo  shaly  loams,  10  to  20  percent  .slopes,  moder- 
ately eroded. 

Chandler  silt  loam  and  channery  silt  loam,  10  to  20  percent 

slopes,  moderately  eroded. 
Corydon  clay  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Corydon  extremely  rocky  clay  loam.  0  to  15  percent  slopes. 
Dunmore  cherty  silt  loam,  8  to  lo  percent  slopes,  moderately 

eroded. 

Faufiuier  silt  loam,  shallow,  3  to  20  percent  slopes,  moderately 
eroded. 

Hazel  channery  silt  loam,  0  to  10  percent  slopes,  moderately 
eroded. 

Litz  channery  loam,  10  to  20  percent  slopes,  moderately  eroded. 
Litz  channery  loam,  10  to  20  percent  slopes,  severely  eroded. 
Litz  shaly  loam,  10  to  20  percent  slopes,  moderately  eroded. 
Litz  shaly  loam,  10  to  20  percent  slopes,  severely  eroded. 
Litz-Teas  channery  silt  loams,  3  to  15  percent  slopes,  moderately 
eroded. 


Jjitz-Teas  channery  silt  loams,  8  to  i:>  percent  slojies,  severely 
eroded. 

Montovallo  shaly  loam,   10  to  20  i)ercent  slopes,  moderately 
eroiled. 

SOIL  GROUP  G  FOR  SEWAGE  DISPOSAL 
Soil  group  6  for  sewage  disposal  consists  of  soils  sim- 
ilar to  those  in  groups  4  and  5,  but  the  soils  are  so  steep  or 
so  shallow  as  a  result  of  erosion  that  they  are  almost 
entirely  unsuitable  for  sewage  disposal.  Most  of  the 
slopes  are  greater  than  15  percent. 

Berks  channery  loam,  ridges,  20  to  30  percent  slopes,  moderately 
eroded. 

Berks  shaly  silt  loam,  15  to  25  percent  slopes,  moderately  eroded. 

Berks  silt  loam,  ridges,  20  to  30  percent  slopes,  moderately  erorle;!. 

Berks  soils,  ridges,  20  to  45  percent  slopes,  severely  eroded. 

Berks  soils,  ridges,  30  to  GO  percent  slopes. 

Calvin  channery  loam,  20  to  30  i)ercent  slopes. 

Calvin  channery  loam,  20  to  30  percent  slopes,  moderately  eroded. 

Calvin  channery  loam,  30  to  45  percent  slopes. 

Calvin  channery  loam,  45  to  GO  percent  slopes. 

Calvin  shaly  loam,  20  to  30  i)ercent  slopes. 

Calvin  shaly  loam,  30  to  45  jiercent  slojies. 

Calvin-Berks  channery  loams,  20  to  .■'><)  i>erceiit  slopes,  moderately 
eroded. 

Calvin-Berks  channery  loams,  30  to  GO  percent  slopes,  moderately 
eroded. 

Calvin-Montevallo  shaly  loams,  20  to  30  percent  slopes,  moder- 
ately eroded. 

Calvin-.Montevallo  shaly  loams.  20  to  45  percent  slopes,  severely 
eroded. 

Calvin-Montevallo  shaly  loams,  30  tr)  (iO  percent  slopes. 
Chandler  silt  loam  and  channery  silt  loam,  20  to  30  percent  slopes. 
Corydon  very  rocky  clay  loam,  3  to  45  percent  slopes,  moderately 
eroded. 

Eroded  land,  shale  and  schist  materials. 

Hazel  channery  silt  loam,  10  to  20  percent  slopes,  moderately 
eroded. 

Hazel  channery  silt  loam.  10  to  20  i)ercent  slopes,  severely  eroded. 
Hazel  channery  silt  loam,  20  to  30  i>ercent  slopes,  moderately 
eroded. 

Hazel  channery  silt  loam,  20  to  30  percent  slopes,  severely  eroded. 
Hazel  channery  silt  loam,  30  to  45  percent  slopes, 
liitz  shaly  loam,  20  to  30  percent  .slopes,  moderately  eroded. 
Litz  shaly  loam,  20  to  30  i)ercent  sloiies,  severely  eroded, 
liitz  shaly  loam,  30  to  45  percent  slopes,  moderately  eroded. 
Litz  shaly  loam.  30  to  45  percent  slopes,  severely  eroded. 
Litz  shaly  loam,  45  to  GO  percent  slopes. 

Litz-Teas  channery  silt  loams,  15  to  25  percent  slopes,  moderately 
eroded. 

Litz-Teas  channery  silt  loams.  15  to  25  percent  slopes,  severely 
eroded. 

Litz-Teas  channery  silt  loams.  25  to  45  percent  slopes,  moderately 
eroded. 

Montevallo  shaly  loam,  10  to  20  percent  slopes,  severely  eroded. 
Montevallo  shaly  loam.  20  to  30  percent  slopes,  moderately  eroded. 
Montevallo  shaly  loam,  20  to  30  percent  slopes,  severely  eroded. 

SOIL  GROUP  7  FOR  SEWAGE  DISPOSAL 
Soil  group  7  for  sewage  disposal  contains  soils  that 
are  very  poor  or  unsuitable  for  this  use.   The  soils  have 
impeded  drainage  and  a  seasonally  high  water  table,  but 
they  are  not  subject  to  flooding. 

The  percentage  of  septic  tanks  that  failed  to  function 
properly,  as  reported  in  Maryland,  is  greater  on  the  soils 
of  group  7  than  on  those  of  any  other  group.  It  can  be 
predicted  that,  with  few  exceptions,  septic  tanks  on  these 
soils  will  fail.  The  soils  have  very  slowly  permeable 
subsoil  of  fine  clay  or  dense,  compact  silt,  or  both.  Water 
moves  too  slowly  in  these  soils  for  the  effluent  to  be  ab- 
sorbed. Little  movement  can  be  observed  except  in  the 
surface  layer.  It  has  been  observed,  for  example,  that 


WASHINGTON  COUNTY,  MAIO'LANI) 


121 


the  surface  layer  can  be  saturated  with  water  wliile  the 
lower  subsoil  appears  to  be  only  moist.  Apparoully,  hllle 
water  can  iKMietrate  into  the  subsoil  or  llir()u<i-]i  it. 

'I'hc  appearance  of  some  of  the  soils  of  <»i'<)up  7  foi'  sew- 
aiiv  disposal  can  be  extremely  misleadinj^"  to  a  casual  or 
untrained  observer.  The  soils  are  on  u[)lands,  ai  e  <>ent  ly 
or  moderately  sloping,  and  ai)i)ear  to  be  ideal  homesites. 
No  matter  liow  pleasant  the  landscape,  liovvever,  the  soils 
are  not  suitable  for  disposal  of  sewage  from  septic  tanks. 

The  soils  of  group  7,  fortunately,  are  not  extensive. 
There  are  many  small  spots  of  them,  however,  in  all  parts 
of  the  county.  Tlie  spots  are  scattered  in  nearly  all  sec- 
tions, except  in  the  great  limestone  valley. 

Brinkerton  silt  loam,  0  to  8  perceut  slopes. 
Kucluuiau  liravelly  loam,  0  to  3  iXTcciit  slopes. 
Bucluuiau  iiravoUy  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Biieluuiaii  gravelly  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

Bueliaiian  jiravelly  loam,  15  to  25  percent  slopes,  moderately 
eroded. 

Landisburg  cherty  silt  loam,  3  to  8  percent  slopes,  moderately 
eroded. 

Landisburg  cherty  silt  k)am.  8  to  25  percent  .slopes,  moderately 
eroded. 

Leadvale  gravelly  silt  loam,  0  to  3  percent  slopes. 
Leadvale  gravelly  silt  loam,  3  to  8  percent  slopes,  moderately 
eroded. 

Monongahela  gravelly  loam,  3  to  8  percent  slopes,  moderately 
eroded. 

Alonongahela  gravelly  loam,  8  to  15  percent  slopes,  moderately 
eroded. 

Monongahela  silt  loam,  0  to  3  percent  slopes. 
Monongahela  silt  loam,  3  to  8  percent  slopes,  moderately  eroded. 
Monongahela  silt  loam,  8  to  15  percent  slopes,  moderately  eroded. 
Monongahela  silt  loam,  15  to  25  percent  slopes,  moderately  eroded. 
Rohrersville  silty  clay  loam,  0  to  8  percent  slopes,  moderately 
eroded. 

Trego  gravelly  silt  loam,  0  to  3  percent  slopes. 
Trego  gravelly  silt  loam,  3  to  15  percent  slopes,  moderately 
eroded. 

Tyler  silt  loam,  0  to  8  percent  slopes. 

SOIL  GROUP  8  FOR  SEWAGE  DISPOSAL 

Soil  group  8  for  sewage  disposal  contains  the  soils  that 
are  subject  to  flooding  and,  hence,  are  unsuitable  for  this 
purpose  regardless  of  their  other  characteristics. 

The  Ashton  soil  of  this  group  is  well  drained  and  lies 
above  many  minor  floods,  but  it  is  likely  to  be  flooded 
at  high-water  stages.  The  Congaree,  Huntington,  and 
Pope  soils  are  less  easily  and  less  frequently  flooded  than 
the  rest  of  the  group,  but  the  hazards  on  them  are  so 
great  that  septic  tanks  should  not  be  installed,  even 
though  they  might  work  satisfactorily  for  most  of  the 
year. 

Ashton  fine  sandy  loam,  0  to  5  percent  slopes. 

Atkins  silt  loam. 

Chewacla  gravelly  sandy  loam. 

Chewacla  silt  loam. 

Chewacla  stony  silt  loam. 

Congaree  silt  loam  and  gravelly  loam. 

Dunning  and  Mclvin  silty  clay  loams. 

Huntington  fine  sandy  loam. 

Huntington  gravelly  loam. 

Huntington  silt  loam. 

Huntington  silt  loam,  local  alluvium. 

Largent  silt  loam. 

Lindside  silt  loam. 

Lindside  silt  loam,  local  alluvium. 

Melvin  silt  loam. 

Philo  gravelly  sandy  loam. 

Philo  silt  loam. 


Pope  line  sandy  loam. 

Pope  gravelly  loam. 

Pope  gravelly  sandy  loaitj. 

Pope  silt  loam. 

Pope  stony  gravelly  lu.-mi. 

Terrace  escarpments. 

Warnci's  loam,  0  to  S  iiercciit  slopes. 

W'cliadkee  silt  loam. 

This  grou[)ing  of  soils  is  a  guide  to  Die  po.ssibilities 
of  sewage  disposal  in  ^Vashington  ("oimty.  For  any  site 
that  is  doubtful,  actual  testing  of  the  soil  is  essential  before 
a  disposal  field  is  ])lanned. 

Use  of  the  Soil  Survey  in 
Community  Planning 

In  planning  and  zoning  activities,  a  county  generally 
will  benefit  if  a  considerable  part  of  the  soils  suitable 
for  farming  can  be  reserved  for  that  purpose.  However, 
as  a  rule,  the  soils  that  are  best  for  farming  are  also  good 
for  l)uilding  sites.  An  orderly  plan  for  land  use,  made 
by  the  local  people  and  their  representatives,  is  desirable 
to  prevent  intensive  competition  for  the  best  soils  for 
different  kinds  of  use. 

In  the  section  preceding  this  one,  the  soils  have  been 
grouped  according  to  their  suitability  for  disposal  of 
sewage,  with  special  reference  to  the  outflow  from  septic 
tanks.  The  same  groups  of  soils  can  serve  other  purposes 
in  planning  uses  of  suburban  land. 

Soil  groups  1,  2,  and  4  for  sewage  disposal  include 
most  of  the  soils  that  make  the  best  farmland.  The  soils 
of  these  groups  should  be  considered  for  permanent 
farming  use  as  cropland  or  pasture.  Some  of  the  soils 
of  group  8  also  are  valuable  for  farming,  even  though 
they  are  sometimes  flooded.  The  Asht:on,  Congaree, 
Huntington,  and  Pope  soils  of  group  8  are  in  capability 
class  I  because  they  have  few  limitations  of  any  kind 
for  the  production  of  crops. 

In  suburban  communities  land  is  needed  for  public 
recreational  uses.  Within  practical  limits  some  of  the 
soils,  least  valuable  for  farming,  should  be  reserved  for 
parks  and  other  public  areas.  Soils  of  groups  3,  6,  and 
7.  and  .some  of  those  in  group  8,  can  be  used  to  good 
advantage  for  parks  and  recreation. 

The  sloping  and  steep  soils  of  groups  3  and  6  are 
almost  ideal  for  parks  and  other  recreational  areas.  Some 
of  the  steep  soils  have  been  eroded,  and  many  areas  are 
in  woods.  Steep  hillsides  and  the  adjoining  narrow  bot- 
tom lands  are  not  well  suited  to  use  as  farms  or  as  build- 
ing lots. 

Parks  should  be  kept  in  forests,  insofar  as  possible. 
A  few  areas  need  to  be  cleared,  and  many  could  be  re- 
forested. Reforestation  increases  esthetic  values  and  also 
helps  retard  runoff,  control  erosion,  and  reduce  the  dan- 
ger of  flooding.  Protective  vegetation  is  especially  val- 
uable on  the  highly  erodible  soils  of  groups  3  and  6  for 
sewage  disposal. 

Soils  of  group  7  for  sewage  disposal  have  a  very  slowly 
permeable  subsoil  and  tend  to  be  wet  at  times,  some  of 
them  for  a  large  part  of  the  year.  With  good  surface 
drainage  and  careful  disposal  of  surface  water,  these 
soils  can  be  used  as  residential  sites,  provided  a  com- 
plete sewage  disposal  system  is  installed  so  that  owners 
will  not  have  to  depend  on  septic  tanks.  The  soils  of 


122 


SOIL  SHUVKY   SERIES    1959,  NO.  17 


group  7,  particularly  those  that  are  in  scattered,  small 
areas,  can  also  be  used  for  small  community  parks. 

The  soils  of  groups  f,  5,  and  (>  are  rather  shallow  over 
hard  rock.  Tliese  soils  furnish  excellent  footings  for 
industrial  })lants  or  other  heavy  buildings. 

In  any  area  the  cost  of  revegetating  or  otherwise  sta- 
bilizing cuts,  fills,  roadbanks  and  shoulders,  and  other 
disturbed  areas  can  be  an  important  item.  One  of  the 
colnnms  of  table  7  indicates  the  general  suitability  of 
topsoil  that  can  be  obtained  from  each  of  the  soils  of 
the  county.  Use  of  good  to])soil  for  facing  disturbed 
areas  helps  in  the  diflicult  task  of  establishing  protec- 
tive vegetation  on  them. 

Formation  and  Classification  of  Soils 

Soils  are  the  products  of  soil-forming  processes  acting 
on  materials  deposited  or  accumulated  by  geologic  forces. 
The  important  factors  in  soil  formation  are  ])arent  ma- 
terial, cHmate,  living  organisms,  topography,  and  time. 

Factors  of  Soil  Formation 

Climate  and  living  organisms,  particularly  vegetation, 
are  the  active  forces  in  soil  formation.  Their  effect  on 
the  parent  material  is  modified  by  topography  and  by 
the  length  of  time  the  parent  material  has  been  in  place. 
The  relative  importance  of  each  factor  differs  from  ]>lace 
to  })lace.  Occasionally,  one  factor  dominates  and  fixes 
most  of  the  properties  of  the  soil,  but  normally  the  in- 
teraction of  all  five  factors  determines  what  kind  of  soil 
develo])S  in  any  given  place. 

Parent  material 

The  soils  of  Washington  County  developed  fi'om  two 
general  kinds  of  parent  materials.  The  more  extensiA  e  is 
residuum  formed  by  the  weathering  of  rocks  in  place. 
The  other  consists  of  sand,  silt,  clay,  and  rock  fragments 
that  were  transported  by  water,  wind,  or  gravity,  or 
by  a  combination  of  these  agents. 

The  residual  material  was  derived  from  many  dif- 
ferent kinds  of  rocks.  About  one-twentieth  of  the  county 
is  underlain  by  rocks  of  igneous  origin.  But,  at  some  time 
since  their  origin,  they  have  been  metamorphosed  by 
heat,  pressure,  and  movement  into  what  are  now  the 
metabasalts,  or  so-called  greenstones.  Upon  these  rocks 
have  been  developed  the  soils  of  the  Fauquier,  Myers- 
ville,  and  Highfield  series.  The  soils  occur  chiefly  in 
Pleasant  Valley  and  in  the  extreme  northeastern  part  of 
the  county  along  the  Frederick  County  line. 

Most  of  the  county  is  occupied  by  rocks  originally  of 
sedimentary  origin.  These  rocks  ai'e  made  up  of  fine- 
to  coarse-grained  materials  that  were  deposited  in  bodies 
of  water  and  subsequently  transformed  into  rock  by  com- 
paction, cementation,  and  chemical  and  other  consolida- 
tion processes  over  long  periods  of  time. 

The  unaltered  sedimentary  rocks  are  of  various  kinds. 
Limestone  of  various  degrees  of  purity  has  produced 
parent  materials  of  the  Ilagerstown,  Frankstown,  Duf- 
field,  Frederick,  Dunmore,  Elliber,  Benevola,  and  Cory- 
don  soils.  The  Litz  soils  are  from  slightly  calcareous, 
gray  shales.  The  INIontevallo  soils  are  from  acid,  gray 
shales,  the  Berks  soils  from  acid,  yellow  to  brown  shales, 


the  Calvin  soils  from  acid,  red  shales  and  sandstones,  and 
the  Teas  soils  from  slightly  calcareous,  red  shales  and 
sandstones.  Interbedded  shales,  sandstones,  and  lime- 
stones have  produced  tlie  Westmoreland  soils.  Gray  to 
yellow  sandstones,  in  some  places  quartzitic,  are  the  parent 
materials  of  the  Dekalb  and  I^^etonia  soils,  and  red  sand- 
stones, the  parent  materials  of  the  Lehew  .soils. 

Other  rocks  of  sedimentary  origin  have,  in  early  geo- 
logic periods,  been  metamorphosed.  Micaceous  schists 
and  phyllites  have  produced  the  Hazel  and  Chandler 
soils,  and  quartzites  and  (|uartzitic  .sandstones  are  the 
parent  materials  of  the  Kdgemont  soils.  The  Talladega 
.soils  are  also  residual  from  micaceous  schists,  but  they 
have  been  influenced  by  admixtures  of  sandstones  and 
(juartzite. 

The  second  group  of  parent  materials,  as  has  already 
been  noted,  consists  of  those  which  have  been  transported. 
The  areas  of  such  deposits  are  along  present  or  former 
watercourses,  oi-  in  foot-slope  accumulations  of  colluvial 
debris. 

On  the  most  recent  alluvial  deposits  are  the  flood-))hun 
soils  of  the  Atkins,  Chewacla,  Congaree,  l)unning,  Hunt- 
ington, Largent,  Lindside,  Melvin,  Philo,  Po[)e,  Warners, 
and  Wehadkee  series.  On  older  alluvial  deposits,  which 
are  now  in  terrace  positions  above  present  flood  plains, 
are  the  soils  of  the  Ashton,  Etowah.  Holston,  Monon- 
gahela,  Tyler,  and  Waynesboro  series. 

Tlie  soils  occurring  on  deposits  of  colluvial  debris  of 
various  kinds  include  those  of  the  Braddock,  Brinkerton, 
Buchanan,  Landisburg,  Leadvale,  Laidig,  Murrill,  Roh- 
rersville,  Thurmont,  and  Trego  series.  There  is  also  some 
evidence  that  the  Edgeniont  soils  of  Washington  County 
may  be  at  least  influenced  by,  if  not  partially  derived 
from,  colluvial  materials. 

In  age  the  parent  materials  of  the  soils  of  Washington 
County  range  from  very  young  to  very  old.  The  alluvium 
deposited  on  the  flood  plains  during  Recent  geologic  time 
is  the  youngest  parent  material.  New  material  is  added 
to  these  deposits  yearly  by  flooding  or  overwashing. 
Slightly  older  is  the  material  on  the  terraces  along  major 
streams;  it  was  deposited  during  the  Pleistocene  epoch. 
Shales  and  sandstones  on  Sideling  Hill  in  the  western 
part  of  the  county  are  of  Carboniferous  age.  Most  of 
the  shales  and  sandstones,  and  some  of  the  limestones 
from  Fairview  Mountain  westward,  are  Devonian,  but 
some  of  them  are  even  older,  of  the  Silurian  period. 
Most  of  the  rocks  of  the  Great  Valley  are  Ordovician, 
but  some  are  Cambrian,  as  are  also  the  sedimentary  rocks 
of  South  Mountain  and  Elk  Ridge  (4).  Even  older, 
probably  Precambrian,  are  the  metabasalts  (5). 

Climate 

Washington  County  has  a  temperate,  rather  humid 
climate  that  is  typical  of  the  Middle  Atlantic  States. 
The  average  temperatures  and  the  distribution  of  rain- 
fall are  given  in  table  9.  Throughout  the  county,  climate 
has  been  a  rather  uniform  factor  in  soil  development. 
South  Mountain  and  the  other  mountains  and  hills  cause 
some  obstruction  to  the  movement  of  winds,  clouds,  and 
rainstorms.  Thus,  there  is  the  possibility  that  some  local 
areas  might  be  in  a  rain-shadow  position  and  might  re- 
ceive less  rainfall  than  is  normal  for  the  county  as  a 
whole. 


WASIIlNCroX   COUNTY,   MAIH  I.A.NI) 


Tabi.e  9. — ■Temperature  and  precipitation  at  (Jhewsville 
Bri(l<i<port,  Washington  County,  Md. 

ll'Mcx  nlion,  r)tiO  fiTl  I 


.Month 

Temperature  ' 

Precipitation  - 

Aver- 
age 

Abso- 
lute 
maxi- 
nmm 

Abso- 
lute 
mini- 
mum 

Aver- 
age 

Driest 
year 
(1930) 

Wet- 
test 
year 
(1952) 

Aver- 
age 

snow- 
fall 

December  

January. 
February  

Winter  

IMarch  

April  

May   

Spring  

June-   

Til  1 

July  

August       _  - 

Summer  

September  

October 
November  

Fall  

Year  

"F. 
32.  9 

30.  8 

31.  2 

"F. 

72 
78 
76 

-13 
-27 
-20 

Inches 
2.  61 
2.  70 
2.  17 

Inches 

3.  46 
1.  45 
1.  25 

Inches 

2.  76 

3.  69 
1.  31 

Inches 

5.  3 
8.  3 
7.  6 

31.  6 

78 

-27 

7.  48 

6.  16 

7.  76 

21.  2 

41.  2 
50.  5 
61.  0 

88 
94 
96 

-7 
9 
23 

3.  01 

2.  97 

3.  52 

3.  45 
2.  49 
1.  92 

3.  29 
7.  80 
5.  53 

5.  2 
1.  0 

50.  9 

96 

-7 

9.  50 

7.  86 

16.  62 

6.  2 

69.  4 
74.  0 
71.  9 

100 
103 
104 

30 
42 
39 

4.  00 

3.  66 
3.  87 

5.  60 
.  69 
.  73 

3.  88 
2.  80 
2.  94 

0 

0 

71.  8 

104 

30 

11.  53 

7.  02 

9.  62 

65.  9 
54.  4 
43.  2 

99 
95 
83 

25 
19 
-4 

3.  07 
2.  97 
2.  26 

2.  81 
.  24 
.  48 

5.  58 
1.  27 

6.  07 

(?) 

.  1 
1.  0 

54.  5 

99 

-4 

8.  30 

3.  53 

12.  92 

1. 1 

52.  2 

104 

-27 

36.  81 

24.  57 

46.  92 

28.  5 

'  Average  temperature  based  on  a  58-year  record,  tlirough  1935; 
highest  and  lowest  temperatures  on  a  55-year  record,  through  1952. 

2  Average  precipitation  leased  on  a  58-year  record,  through  1955; 
wettest  and  driest  years  based  on  a  58-year  record,  in  the  period 
1889-1955;  snowfall  based  on  a  55-year  record,  through  1952. 

^  Trace. 

In  a  temperate  climate  tliere  are  generally  leached, 
acid  soils,  and  this  is  true  in  Washington  County.  INIany 
of  the  rocks  have  been  weathered  to  a  rather  great  depth. 
Some  of  the  rocks  not  deeply  weathered  are  highly  re- 
sistant to  the  Aveathering  processes,  and,  in  some  places, 
geologic  erosion  has  kept  pace  with  formation  of  the 
regolith.  Althottgh  large  areas  of  soils  in  Washington 
County  have  l)een  developed  from  limestone,  in  only  a 
few  minor  places  are  there  any  free  carbonates  remain- 
ing in  the  soils.  Most  of  the  soils  of  the  coimty  are 
acid,  whether  they  developed  from  acid  rocks  or  from 
limestone,  and  many  of  them  are  strongly  acid.  Fertility 
levels  range  from  very  low  to  very  high.  Many  of  the 
less  fertile  soils  can  "be  made  productive  with  "^suitable 
management. 

Living  organisms 

Before  settlement  of  the  county,  the  native  vegetation 
made  up  most  of  the  important  living  organisms  that 
affected  soil  development.  The  activity  of  larger  ani- 
mals was  apparently  of  little  importance,  with  soil  ani- 
mals, such  as  earthworms,  having  a  greater  effect.  The 
first  settlers  in  the  county  found  a  dense  cover  of  hard- 
wood forest.  The  oaks  have  been,  at  least  in  historic 


time,  the  domiiianl  I  ices  in  all  sections  of  flie  couiMy. 
Oilier  imporlant  (rccs  included  iiickory,  cheslnnt,  maple, 
dogwood,  and  a  smaller  number  of  other  liardwoods.  'J'lie 
chestnut  is  no  longei'  pi-esent,  e.xcept  !is  I'ccurring  spi-outs 
from  the  bases  of  trees  that  were  destroye*!  by  chestnut 
blight  e;ii-lier  in  this  century.  It  is  doubtful  if  there 
were  many  conifers  before  the  county  was  settled. 

Jfardwood  trees  are  heavy  feeders  on  calcium  and  other 
basic  elements,  liases  are  returned  to  the  surfaf;e  of  the 
soil  each  year  with  leaf  fall;  when  the  leaves  are  decom- 
])osed,  bases  reenter  the  soil  and  are  reutilized  by  plants. 
Thus,  we  have  a  never-ending  base  cycle,  and  soils  in 
which  the  subsoil  and  pai-ent  material  furnish  a  gf)od 
supply  of  basic  elements  do  not  easily  become  highly 
leached  under  forest  vegetation.  After  enough  time,  liow- 
ever,  in  a  climate  such  as  that  of  Washington  County, 
all  the  soils  will  become  leached. 

With  the  development  of  agriculture  in  Washington 
County,  man  has  affected  the  character  and  composition 
of  the  soils.  Primary  effects  have  been  altering  of  the 
surface  by  plowing  and  exposure  of  the  surface  to  ac- 
celerated erosion.  The  clearing  of  forests,  deep  plowing, 
introduction  of  new  crops,  use  of  lime  and  fertilizer,  and 
some  artificial  improvement  of  drainage  will  be  reflected 
in  the  direction  and  rates  of  soil  formation  and  in  the 
fixture  morphology  of  the  soil. 

Topography 

There  are  three  major  physiographic  divisions  in 
Washington  County.  In  the  east  there  is  the  Blue  Kidge 
(South  Mountain)  and  the  associated  Elk  Ridge,  on  and 
close  to  the  county  line.  Then,  there  is  the  broad,  shallow 
Great  Valley  with  its  gently  rolling  floor,  extending  west- 
ward to  Fairview'  Mountain.  From  the  latter  mountain 
westward  to  the  encl  of  the  county  is  a  succession  of  low, 
but  rather  sharp,  ridges  with  intervening  small  valleys 
or,  in  some  places,  merely  ravines;  this  part  is  known  as 
the  Appalachian  ridge  and  valley  section.  Each  of  these 
three  great  divisions  is  more  or  less  sharply  differentiated 
from  the  adjoining  ones. 

Within  each  of  the  major  physiographic  areas,  there 
are  soils  in  three  positions :  Uplands,  colluvial  slopes  and 
old  stream  terraces,  and  present  flood  plains. 

Among  soils  of  the  24  series  that  developed  in  residuum 
from  the  upland  rocks,  differences  as  a  rule  are  more 
closely  related  to  the  kind  of  rock  than  to  topography. 
Within  a  soil  series,  however,  the  soils  on  steep  slopes 
tend  to  be  thinner  over  the  rock  than  those  on  gentle 
slopes. 

In  colluvial  areas  and  on  stream  terraces,  there  is 
generally  a  relationship  betw-een  topography  and  soils. 
The  ratlier  highly  oxidized  Braddock  soils  and  the  less 
well-oxidized  Thurmont  soils  occupy  sloping  to  rolling 
topography  where  probably  there  has  always  been  ade- 
quate runoff.  In  depressions,  on  similar  materials,  there 
have  been  developed  the  poorly  drained  Eohrersville 
soils,  where  not  only  fine  materials,  but  also  much  seepage 
and  runoff  water,  have  accumulated.  All  of  the  soils 
of  the  Braddock,  Thurmont,  and  Eohrersville  series  are 
on  essentially  the  same  kind  of  parent  materials,  so  the 
differences  cannot  be  attributed  to  parent  material.  The 
most  obvious  explanation  is  that  of  differences  in  topog- 
raphy. 


124 


SOIL  SURVEY   SERIES    1959,  NO.  17 


The  samo  relatioiisliip  is  essentially  true  on  some  of 
(lie  old  alhn  ial  (erraces.  llolston  soils,  wliicli  are  niod- 
erately  oxidized,  and  (he  Waynesboro  soils,  which  are 
highly  oxidized,  occupy  the  better  drained  positions; 
IMonongahela  soils  have  developed  where  topography  en- 
couraged the  formation  of  a  dense  layer  called  a  fragi- 
pan,  aixl  'J\ler  soils  have  developed  on  the  finest  grained 
ma(erials  in  de[)ressions  and  other  low  places.  All  of 
these  soils  have  been  formed  in  alluvium  from  acid 
sandstones  and  shales.  The  dillerences  in  drainage  have 
resuKed  from  dillerences  in  prolile  development  as  in- 
liueiiced  by  topograi)hy. 

Time 

The  lengtli  of  time  the  parent  material  has  been  in 
[)lace  and  exposed  to  the  active  forces  of  climate  and 
vegetation  is  an  important,  factor  in  soil  formation.  The 
age  of  a  soil,  however,  refers  to  its  degree  of  profile 
development  and  is  influenced  by  other  factors  as  well 
as  by  time.  A  mature  soil  is  one  that  has  well-defined, 
genetically  related  horizons;  an  immature  soil  is  one  that 
shows  little  or  no  horizonat  ion.  Hecause  of  diffei'ences 
in  topography  and  parent  material,  soils  that  have  been 
developing  for  about  the  same  length  of  time  will  not 
necessarily  have  reached  the  same  stage  of  profile  devel- 
opment. If  the  parent  rock  is  resistant  and  weathers 
slowly,  profile  development  is  slow.  If  the  slope  is  steep, 
some  soil  is  gradually  removed,  and  manj^  of  the  soils 
lack  well-defined  horizons.  On  flood  plains,  frequent  de- 
position of  fresh  alluvium  prevents  the  development  of  a 
mature  profile. 

In  Washington  County  the  Fau([uier  soils  and  the 
ITagerstown  soils  of  the  uplands  are  examples  of  mature 
soils;  in  them,  the  rate  of  weathering  and  soil  formation 
exceeds  the  rate  of  geologic  erosion.  The  Hazel  soils  of 
tlie  upland  slopes  are  very  immature;  in  them,  the  rate 
of  weathering  of  the  resistant  material  is  slow  and  is 
exceeded  by  the  rate  of  geologic  erosion.  The  Pope  soils 
of  the  flood  plains  are  immature  because  their  parent 
material  is  continually  renewed. 

Morphology  of  Soils 

Some  soils  of  Washington  County  liave  moderate  to 
strong  horizonation,  but  the  younger  soils,  in  both  allu- 
vial and  residual  materials,  show  very  little  horizonation. 

The  dift'erentiation  of  horizons  in  soils  of  the  county 
is  the  result  of  one  or  more  of  the  following  major  proc- 
esses: (1)  Accumulation  of  organic  matter,  (2)  leaching 
of  carbonates  and  salts,  (3)  chemical  weathering  of  the 
primary  minerals  of  rocks  and  parent  materials  into 
silicate  clay  minerals,  (4)  translocation  of  sihcate  clay 
minerals,  and  probably  of  some  silt-size  particles,  from 
one  hoi-izon  to  another,  and  (5)  chemical  reduction  and 
transfer  of  iron. 

In  most  soils  of  the  county,  several  of  these  processes 
have  operated  in  the  development  of  horizons.  For  exam- 
ple, the  first  four  processes  are  reflected  in  the  strong 
horizons  of  such  deep,  well-drained  soils  as  those  of  the 
Fauquier,  HagerstoAvn,  and  Dunmore  series,  and  all  five 
processes  have  had  effects  on  soils  of  the  Monongahela. 
Leadvale,  and  Trego  series.  On  the  other  hand,  only 
processes  1  and  5  have  had  much  effect  on  the  Melvin, 


Wehadkee,  and  Atkins  soils,  and  some  oi-ganic  accumula- 
tion (process  1)  is  the  only  ob\ious  process  in  the  Pope. 
Huntington,  and  (>)ngaree  soils.  On  these  soils,  however, 
any  of  the  processes  mentioned  above  may  have  taken 
place  in  the  soil  materials  before  they  were  moved  and 
deposited  as  new  alluvium. 

Some  organic  matter  accumulated  in  all  of  the  soils  of 
Washington  County  to  form  an  A,  lioriztju.  The  Aj  hori- 
zon is  thin  in  most  soils,  and  in  the  plowed  soils  it  has 
lost  its  identity  to  become  an  Ap  or  part  of  the  Ap 
horizon.  In  a  few  soils,  such  as  the  Dumiing,  the  Ai 
horizon  is  thicker  than  the  plowed  layer.  Tlie  amount  of 
organic  matter  ranges  from  very  low  to  moderately  high. 
The  soils  of  the  Montevallo  series  contain  so  little  or- 
ganic matter  that  even  in  the  unidowed  soils  it  is  scarcely 
apparent.  The  Dumiing  soils  lia\  e  a  thick,  prominent  Ai 
horizon  that  contains  perhaps  as  much  as  5  percent  or- 
ganic matter. 

Leaching  has  translocated  minerals  in  most  of  the  soils 
in  the  county.  The  carbonates  have  been  completely 
leached  out  of  the  A  and  B  horizons  of  all  the  soils,  except 
those  of  two  series.  The  Warnei-s  soils  and  some  areas  of 
the  Melvin  soils  contain  lime.  There  are  some  free  car- 
bonates in  the  Afelx  in,  and  the  Warners  soils  are  marly  and 
calcareous  tliroughout.  P>o(h  consist  of  very  recently  de- 
posi(ed  material,  and  there  has  l^een  some  rei)leiiisliment 
of  carl)onates  to  ofl'set  removal  of  carbonates  by  leach- 
ing. Some  other  soils  of  the  county,  particularly  those 
of  the  Lindside  series,  contain  a  large  amoimt  of  ex- 
changeable calcium,  but  have  no  free  carbonates.  All  of 
these  soils  are  young,  and  they  would  become  leached 
if  they  did  not  receive  neutral  or  lime-bearing  sediments 
from  time  to  time. 

The  result  of  complete  weathering  in  this  environment 
would  be  the  production  of  clay  that  is  dominantly 
kaolinite  (3).  Actually,  although  kaolinite  is  probably 
the  most  characteristic  clay  mineral  in  mature  soils  of 
this  area,  other  clay  minerals,  such  as  halloysite,  illite, 
vermiculite,  and  montmorillonite,  are  also  present  in 
many  of  the  soils.  Their  presence  shows  that  in  spite  of 
the  long  exposure  of  minerals  during  geologic  time, 
the  weathering  processes  have  not  yet  reached  their  end 
point.  The  processes  may  have  reached  a  point  where 
the  soils  and  their  accompanying  chemical  processes  are 
in  at  least  temporary  equililn-ium  with  the  environment. 

Translocation  of  silicate  clay  minerals  has  contributed 
strongly  to  the  development  of  horizons  in  most  of  the 
soils  oif  the  comity.  Silicates  have  been  removed,  in 
part,  from  the  A  horizon  of  the  soils  and  have  become 
partly  immobilized  in  the  B  horizon.  This  is  true  in  all 
the  soils  that  have  a  textural  B  horizon,  and  is  probably 
true  to  some  slight  degree  in  soils  that  do  not  ha^-e  a 
distinct  textural  B  horizon.  The  effects  of  translocation 
are  illustrated  most  strongly  in  the  soils  that  have  a 
fine-textured  B  horizon,  such  as  those  of  the  Fauquier, 
Waynesboro,  Hagerstown,  and  particularly  of  the  Brin- 
kerton  and  Dunmore  series. 

The  solution  and  transfer  of  iron  have  occurred  to 
some  degree  in  all  the  soils,  and  particularly  in  the  wet 
soils.  The  formation  of  reduced  iron  compounds  that 
give  the  soil  a  neutral  gray  color  is  known  as  gleying. 
In  soils  of  the  Dunning,  Brinkerton.  Atkins,  Melvin, 
Tyler,  and  Wehadkee  series,  there  has  been  considei-able 


WASHINGTON'  COUNTY,  MARYLAND 


12.') 


cincnl  dl'  ii'oii.    In  llu'  dv'wv  soils,  iiiov  I'inciil  of  iron 

has  been  loss  inarkiHl,        <iviu'i':illy  llirrc  Ims  liccii   \ c 

jiuMit  J'roni  Ihe  A  to  tlx'  H  liorizon. 

In  some  of  the  «ivntly  slopino-  and  sli«ililiy  (U'pivssed 
soils,  there  has  been  arcunmlation  of  flay  niinerals  and 
of  silt  in  the  subsoil.  This  accumulation  briniis  about  Ihe 
formation  of  a  horizon,  generally  a  part  of  the  15  horizon, 
that  is  very  dense  and  compact.  This  horizon  can  be 
either  a  claypan  or  a  fragipan.  A  claypan  is  a  dense 
subsoil  horizon  that  has  a  high  content  of  clay,  such  as 
the  subsoil  in  Tyler  soils.  A  fragipan  is  a  firm,  dense, 
brittle  horizon  that,  as  a  rule,  contains  more  silt  and  sand 
thau  clay.  The  Jiuchanan,  Landisburg,  Leadvale,  ^lonon- 
gahela,  Kohrersville,  and  Trego  soils  are  examples  of 
those  containing  a  fragipan.  Either  claypan  or  fragipan 
causes  impeded  drainage,  which  in  turn  brings  about  the 
reduction  and  transfer  of  iron  or  the  gleying  that  was 
mentioned  in  the  preceding  pai-agra])h. 

Iron  that  is  reduced  under  conditions  of  poor  aeration 
usually  is  made  soluble.  It  may  be  removed  from  the  soil 
entirely.  Counnonly,  however,  in  the  soils  of  Washing- 
ton County,  it  has  moved  only  a  short  distance  and  may 
have  stopped  either  in  the  same  horizon  where  it  origi- 
nated or  in  another  nearby  horizon.  Part  of  this  iron 
may  become  reoxidized  and  segregated  to  form  the  yel- 
lowish-red. strong-brown,  or  yellowish-brown  mottlings 
that  are  connnon  in  the  gleyed  horizons  of  soils  and  indi- 
cate impeded  drainage. 

When  })rimarv  minerals  are  changed  to  silicate  clay, 
there  is  usually  some  iron  set  free  as  a  hydrated  oxide. 
Depending  upon  the  degree  of  hydration,  these  oxides 
are  more  or  less  red  in  color.  A  small  amoiuit  of  these 
oxides  is  sufficient  to  color  a  soil  strongly,  particulai-ly 
where  silicate  clay  minerals  are  not  in  great  abundance 
and  where  the  parent  materials  ai*e  fairly  coarse  in  tex- 
ture. Under  these  conditions,  a  strongly  colored  subsoil, 
or  "color  B''  horizon,  is  formed,  even  though  there  may 
not  have  been  enough  accumulation  of  clay  minerals  to 
form  a  textural  B  horizon. 

In  Washington  County  a  B  horizon  that  has  strong- 
red  colors,  which  indicate  the  presence  of  free  iron  oxides, 
is  generally  also  a  strong  textural  B  horizon  that  contains 
a  definite  accumulation  of  silicate  clay  minerals.  The 
most  strongly  developed  B  horizons  in  the  county  are 
those  in  the  Etowali,  Fauquier,  Hagerstown,  Waynes- 
boro, and  Benevola  soils. 

A  detailed  description  of  one  representative  profile  of 
each  soil  series  of  the  county  is  given  in  this  repor-t  in 
the  section  "Descriptions  of  the  Soils."' 

Classification  of  Soils  by 
Great  Soil  Groups 

Soils  are  placed  in  narrow  classes  to  facilitate  the 
organization  and  application  of  knowledge  about  their 
use  and  management  on  individual  farms.  They  are 
placed  in  broad,  inclusive  classes  to  facilitate  study  and 
comparison  of  large  areas,  such  as  countries  or  continents. 
In  the  comprehensive  system  of  soil  classification  that  has 
been  followed  in  the  United  States  (2),  the  soils  have 
been  placed  in  six  categories.  Beginning  with  the  most 
inclusi^-e  category,  these  are  the  order,  suborder,  gi-eat 
soil  group,  family,  series,  and  type. 


There  arc  ihrcc  soil  orders  and  thousands  of  soil  types. 
'I1ie  concepts  of  subordei'  and  family  liave  never  been 
fully  developed.  The  tyju'  and  the  series  are  llie  cate- 
gories most  conunonly  usetl  in  discussing  the  soils  of  a 
county  or  other  small  area.  Series  that  are  alike  in  sev- 
eral chai-acterist ics  are  classified  as  one  great  soil  gi-r)U|). 

The  great  soil  groups  that  are  presently  recognized 
in  Washington  County  are  Sols  liiains  Acides,  Podzols, 
Gray-Brown  Podzolic  soils,  Ked- Yellow  Podzolic  soils, 
Eeddish-Brown  Lateritic  soils,  Planosols,  Humic  Gley 
soils,  Ijow-Ilumic  (xley  soils,  TJthosols,  and  Alluvial  soils. 
Many  of  the  soils  do  not  fit  the  modal  or  central  concept 
of  any  one  great  soil  group.  These  soils,  wliich  are  called 
intergrades,  have  enough  characteristics  of  a  gi\en  great 
soil  group  to  be  included  in  that  group,  but  they  have 
one  or  more  characteristics  of  another  group.  One  great 
soil  group  toward  which  some  of  the  soils  of  the  county 
iutergrade  is  the  group  of  Terra  Rossa  soils. 

Sols  Bruns  Acides 

Sols  Bruns  Acides  liave  a  weak  Ai  horizon  and  a  M-ry 
weak  A2  horizon,  or  none  at  all.  The  B  horizon  is  dif- 
ferentiated almost  entirely  by  color,  and  its  clay  content 
is  the  same  or  only  slightly  higher  or  lower  than  that  of 
the  horizons  above  and  below.  By  definition,  the  B  hori- 
zon is  redder  or  higher  in  chroma  than  the  A  and  C' 
liorizons.  Also,  there  is  little  structural  development  or 
differentiation.  These  soils  have  a  low  degree  of  base 
saturation  and  are  generally  verj'  strongly  acid. 

Sols  Bruns  Acides  are  represented  in  Washington 
County  by  two  series  that  are  typical  of  this  group. 
These  are  the  Dekalb  and  Lehew  series. 

Podzols 

Podzols  have  a  thin,  dark-colored  Ai  horizon,  a  liglit- 
gray  An  horizon  a  few  inches  thick,  and  a  brown  or 
dai'k-brown  Bo  horizon  over  lighter  colored  parent  mate- 
rial. The  A2  horizon  is  strongly  leached,  and  the  B^ 
horizon  is  a  zone  of  accumulation  of  iron,  organic  matter, 
or  both.  The  degree  of  base  saturation  is  extremeh'  low, 
and  the  soils  are  very  strongly  acid  to  extremely  acid. 

There  is  only  one  Podzol  in  Washington  County.  This 
is  the  Leetonia  series,  found  only  at  higher  elevations  on 
South  Mountain. 

Gray-Brown  Podzolic  soils 

Of  the  52  soil  series  of  Washington  County,  14  are 
dominated  by  characteristics  of  the  great  soil  group 
known  as  Gray-Brown  Podzolic  soils.  These  soils  are 
typical  of  forested,  cool-temperate,  humid  regions.  In 
the  natural  state,  a  Gray-Brown  Podzolic  soil  has  a  fairly 
thin  leaf  litter  and  a  rather  thin  humus  layer  over  a 
dark-colored  mineral  surface  layer.  There  is  a  grayish- 
brown  leached  subsurface  horizon  over  a  moderately 
heavy,  blocky  B  horizon.  The  B  horizon  may  be  brown, 
yellowish  brown,  brownish  yellow,  or  reddish  bi-own. 
The  profile  is  moderately  thick  to  thick.  Reaction  is  most 
commonly  slightly  acid,  but  may  range  from  medium 
acid  to  neutral. 

Ordy  one  series  of  soils  in  Washington  Coiuity  is  rep- 
resentative of  the  central  concept  of  Gray-Brown  Podzolic 
soils.  This  is  the  Duffield  series,  which  consists  of  soils 
that  developed  from  materials  high  in  lime.  The  soils 
of  12  other  series  are  classified  as  Gray-Brown  Podzolic 


126 


SOIL  SURVEY  SERIES    19  59,   NO.  17 


soils,  but  tliey  luive  sonic  cliurarteristics  of  other  <>-rou[)s. 

The  Edgemont,  EUiher,  Fiankstown,  Frederick, 
Ilrtgerstown,  Highlield,  IMurrill,  Myersville,  and  West- 
moreland series  consist  of  Gray-Brown  Podzolic  soils 
that  have  some  of  the  characteristics  of  Red-Yellow 
Podzolic  soils.  They  are  somewliat  more  strongly  leached 
than  typical  (Iray-Brown  Podzolic  soils.  The  Ao  horizon 
is  more  strongly  bleached,  and  the  B  horizon  is  more 
red  or  yellow  and  less  brown.  These  intergrades  are 
characteristically  more  acid  throughout  lhan  the  modal 
Gray-Brown  l*odzolic  soils. 

The  Berks  soils  are  Gray-Brown  Podzolic  soils  that 
have  some  of  the  characteristics  of  Lithosols.  Lithosols 
are  very  immature  soils  being  developed  from  hard  rock 
material,  and  they  do  not  have  complete  horizonation. 
The  Berks  soils  are  shallow  over  bedrock  of  shale  and 
contain  nuich  skeletal  shale  material,  but  they  do  have 
a  faint,  though  not  distinct,  B  horizon  of  clay  accumula- 
tion characteristic  of  the  Gray-Brown  Podzolic  group. 

The  Ashton  series  consists  of  young  or  immature  Gray- 
Brown  Podzolic  soils  being  developed  from  fairly  recent, 
though  not  contemporary,  alluvium.  Horizonation  is 
w(>ak.  The  Ashton  soils  are  said  to  be  Gray-Brown  Pod- 
zolic soils  intergrading  toward  Alluvial  soils. 

Red-Yellow  Podzolic  soils 

The  central  concept  of  this  group  is  that  of  well- 
developed,  well-drained,  acid  soils  that  have  a  thin, 
organic-mineral  Ai  horizon,  a  light-colored,  bleached, 
and  leaclied  Ao  horizon,  and  a  I'ed,  yellowish-red,  reddish- 
yellow,  or  yellow,  mucli  liner  textured  B  horizon.  The 
pai'ent  material  is  commonly,  though  not  invariably,  more 
or  less  siliceous:  where  it  is  thick,  it  is  commonly  marbled 
or  otherwise  variegated  in  color.  The  chroma  of  the  B 
horizon  is  high,  G  or  above.  The  reaction  is  normally 
sti'ongly  acid  or  very  strongly  acid. 

Representative  of  the  central  concept  of  the  Red-Yellow 
Podzolic  soils  are  the  Braddock,  Dumnore,  Ilolston, 
Thurmont,  and  Waynesboro  series.  Perhaps  the  morpho- 
logy of  the  Waynesboro  series  most  nearly  represents 
modal  Red-Yellow  Podzolic  soils. 

Other  soils  of  the  Red- Yellow  Podzolic  great  soil 
group  are  characterized  by  a  fragipan  horizon  below  the 
normal  B  horizon.  These  fragipans  are  dense,  compact, 
platy  in  structure,  normally  highly  silty,  and  slowlj^  or 
very  slowly  permeable  to  water.  They  obstruct  the  pene- 
tration and  development  of  roots.  INIost  of  them  are  only 
moderately  well  drained.  Morphologically,  the  soils  are 
typical  Red- Yellow  Podzolic  soils,  but  they  have  also 
tlie  fragipan  horizon.  In  spite  of  drainage  that  is  usually 
impeded,  they  are  not  said  to  be  intergrades  toward  any 
other  great  soil  group,  but  are  simply  known  as  Red- 
Yellow  Podzolic  soils  with  fragipans. 

The  soils  of  Washington  County  that  fall  into  this 
class  are  those  of  the  Buchanan,  Laidig,  Landisburg, 
Leadvale,  Monongahela,  and  Trego  series. 

The  soils  of  the  Etowah  and  Fauquier  series  are  inter- 
grades to  the  Reddish-Brown  Lateritic  group.  The  B 
horizon  of  these  soils  closely  resembles  that  of  Reddish- 
Brown  Lateritic  soils,  which  are  normally  found  in  sub- 
tropical or  very  warm-temperate  climatic  zones.  These  B 
horizons  are  red  to  dark  red,  fine  textured,  and  pre- 
sumably contain  free  oxides  of  iron  and  aluminum.  The 
subsoils  are  porous,  and  the  soils  are  well  drained. 


Reddish-Iirown  Lateritic  soils 

Reddish-Brown  J^ateritic  soils  are  closely  related  to, 
and  have  nuich  the  same  geographic  distribution  as,  the 
Red-Yellow  I'odzolic  soils.  They  have  been  formed  from 
less  siliceous  parent  matei-ial ;  for  example,  from  material 
weathered  from  basic  rocks,  such  as  basalt  or  limestone. 
Thus,  the  parent  materials  are  commonly  lower  in  quartz 
or  its  etjuivalent  and  higher  in  alkaline  earth  elements, 
such  as  calcium,  than  those  giving  rise  to  Retl- Yellow 
Podzolic  soils.  Reddish-Brown  Lateritic  soils  have  a 
thick,  dark  Ai  horizon,  lack  Ao  horizon,  and  are  dark  in 
color  in  the  B  horizon.  Tlie  degree  of  weathering  of 
minerals  in  the  soil  profile  is  much  the  same  as  for  Red- 
Yellow  Podzolic  soils. 

The  Benevola  series  is  tentatively  classified  as  a 
Reddish-Brown  Lateritic  soil  intergrading  to  the  Terra 
Rossa  group.  Benevola  soils  are  comparable  to  typical 
members  of  the  group  in  features  su(;h  as  color,  texture, 
structure,  and  consistence  of  horizons  in  the  solum.  On 
the  other  hand,  these  horizons  are  less  acid  in  reaction 
than  those  of  typical  Reddish-Brown  Lateritic  soils. 
Benevola  soils  have  reddish-brown  clay  loam  surface 
layers  over  dark-red  clay  subsoils  that  have  conqjound 
blocky  and  granular  stnicture.  The  subsoils  are  poi'ous, 
which  is  uncommon  for  clays  that  are  firm  when 
moist  and  sticky  and  plastic  when  wet.  Overlying  hard, 
sandy  limestone  or  calcareous  sandstone,  Benevola  soils 
are  neutral  to  mildly  alkaline  in  reaction  throughout  the 
solum.  This  is  the  reason  for  considering  them  inter- 
gi'ades  to  the  Terra  Rossa  group,  soils  found  in  the 
credit erranean  region  of  Europe  and  Africa,  where  cli- 
mates are  much  less  humid  and  many  soils  are  calcareous 
to  the  surface. 

Planosols 

The  great  soil  group  known  as  Planosols  is  defined  as 
a  group  of  soils  having  one  or  more  horizons  abruptly 
separated  from,  and  sharply  contrasting  to,  an  adjacent 
liorizon  because  of  cementation,  compaction,  or  high  clay 
content  (8). 

There  are  two  such  soil  series  in  Washington  County, 
the  Rohrersville  and  the  Tyler.  Each  has  a  dense  B 
horizon  that  causes  the  soil  to  be  poorly  drained.  The 
Tyler  soils  have  a  clay  B  horizon,  and  the  Rohrersville 
soils  have  a  B  horizon  of  compact,  platy,  silty  clay  loam 
to  sand}'  clay  loam. 

Humic  Gley  soils 

Humic  Gley  soils  are  poorly  drained  or  very  poorly 
drained.  They  have  a  thick,  prominent  A  horizon  that 
has  a  high  content  of  organic  matter  and  a  strongly 
reduced  or  mottled  B  horizon  or  subsoil.  The  mottling 
or  gleying  in  some  places  extends  upward  into  the  lower 
part  of  the  A  horizon. 

Only  one  soil  in  Washington  County  is  classified  in  the 
Humic  Gley  great  soil  group.  This  is  the  Dunning  series, 
which  contains  the  most  poorly  drained  soils  in  the  county. 
It  occupies  recent  flood  plains,  but  the  soil  materials  have 
been  in  place  long  enough  to  have  developed  a  character- 
istic Humic  Gley  profile. 

Low-Humic  Gley  soils 

This  great  soil  group  consists  of  poorly  drained  soils 
that  normally  have  a  thin  surface  horizon  that  is  moder- 


WASHINGTON   COUNTY,  MAHVLAM) 


127 


;i(('l_v  lii<^h  ill  ()ri;;nnc  iimltcr,  and  a  molt  led  or  "rlcycd 
mineral  subsoil.  'Jlicre  is  <^i'iu'rally  sonic  Icxiiiral  dif- 
IVriMil ia( ion  bclwoon  (he  various  horizons.  Besides  alluvia- 
tioii,  (here  is,  in  many  places,  .some  surface  :iccumula( ion 
of  line  ma(erial  (hat  washed  in  from  adjacent  hi<^lier 
areas.  The  Ijow-Iluniic  Gley  soils  differ  from  the  Ilumic 
Gley  soils  in  that  the  hitter  have  a  prominent  A  horizon 
that  has  a  high  content  of  organic  matter,  and  a  more 
strongly  gleyed  B  horizon. 

Only  one  soil  series  in  (he  coun(y  is  in  (lie  Low-IIumic 
Gley  great  soil  group.  This  is  (he  Brinker(()n  series.  The 
soils  are  wet  much  of  the  (ime;  (lie  high  water  table  is 
a  result  of  seepage. 

There  are  three  poorly  drained  soils  (hat  have  char- 
acteristics of  the  Low-Hvmiic  Gley  group  but  that  grade 
toward  Alluvial  soils.  These  soils,  of  the  Atkins,  Melvin, 
and  "Wehadkee  series,  consist  of  recently  deposited  flood- 
plain  sediinen(s  and  are  subject  to  frequent  flooding  or 
overwasli  and  (o  deposition  of  new  material  on  the  surface. 

Lithosols 

A  Lithosol  has  an  incomplete  solum  or  no  clearly  ex- 
pressed soil  morphology.  It  consists  of  an  imperfectly 
weathered  mass  of  rock  fragments,  and  normally  has  an 
incii)ient  A  horizon  but  no  B  horizon.  Lithosols  are 
generally  confined  to  steeply  sloping  areas,  or  to  areas 
of  very  resistant  rock  where  geologic  erosion  has  removed 
soil  as  fast  as  it  was  formed. 

Eight  soil  series  in  AVasliington  County  belong  to  this 
group,  but  onh^  three  of  them  fit  the  central  concept  of 
Lithosols.  These  are  the  Chandler,  Hazel,  and  Monte- 
vallo  series. 

The  Corydon  series  is  a  Lithosol  with  some  additional 
characteristics  of  Gray-Brown  Podzolic  soils.  It  consists 
of  sliallow  clay  loam  underlain  by  and  developing  from 
limestone,  and  has  a  few  to  many  rock  outcro])s.  It  has 
a  very  weakly  developed  B  horizon,  somewhat  like  that 
in  the  Gray-Brown  Podzolic  soils. 

The  Calvin,  Litz,  and  Teas  soils  are  Lithosols  that  inter- 
grade  toward  Sols  Bruns  Acides.  They  have  a  very 
weakly  developed  B  horizon  that  resembles  tliat  of  the 
Sols  Bruns  Acides.  The  normal  or  modal  Talladega  soil 
would  be  a  true  Lithosol,  but  only  a  thick  variant  is 
mapped  in  Washington  County,  and  this  variant  is  an 
intergrade  toward  Red- Yellow' Podzolic  soils. 

Alluvial  soils 

Alluvial  soils  consist  of  deposits  of  recent  alluvium  on 
flood  plains.  They  have  little,  if  any,  horizonation  or 
other  significant  observable  effects  of  true  soil-forming 
processes.  Although  they  are  composed  of  soil  in  the 
general  agricultural  sense,  they  are  little  more  than  parent 
materials  in  the  genetic  sense",  even  though  the  soil  par- 
ticles may  once  have  been  parts  of  genetic  soils  at  other 
locations. 

The  Chewacla,  Congaree,  Huntington,  Largent,  Lind- 
side,  Philo,  Pope,  and  Warners  series  consist  of  Alluvial 
soils.  The  Congaree,  Huntington,  and  Pope  soils  are 
deep  and  well  di-ained.  They  have  no  horizonation,  ex- 
cept for  some  slight  accumulation  of  organic  matter  near 
the  surface.  They  have  no  impediment  to  internal  drain- 
age, although  they  may  be  in  positions  that  are  flooded. 

Soils  of  the  Chewacla,  Largent,  Lindside,  and  Philo 
series  are  moderately  well  drained  or  somewhat  poorly 

599553—62  9 


di'aiiied.  I'x'caiise  (he  wa(er  (al)l('  is  high  for  a  fairly 
large  pari  of  each  yeai',  (here  is  some  e\  ideiic(!  of  slight 
gleiza(ioii  in  (he  lower  ])ar(  of  (lie  subsoil.  TIk^v  are, 
however,  wi(hin  (he  ceiUral  concept  of  Alluvial  soils. 

The  Warners  soils  have  variable  drainage;  (hey  are 
poorly  drained  in  many  places  and  modera(ely  well  drain- 
ed in  others.  They  consist  of  marly  alluvium  tha(  has 
been  somewhat  darkened  in  (he  surface  layer  by  organic 
ma((er,  but  (liey  have  little  oilier  e\ideiice  of  genetic 
horizonation. 


Literature  Cited 

(1)  Amehican  Association  of  State  Highway  Officials. 

1955.  standard  specifications  for  highway  materiai,s 

AND  methods  of  SAMPLING  AND  TESTING.      Ed.  7, 

2  v.,  illus. 

(2)  Baldwin,  Mari^,  Kellogg,  Charles  E.,  and  Thorp,  .Tames. 

1938.  soil  classification.  In  U.S.  Dept.  Agr.  Ybk., 
Soils  and  Men,  pp.  979-1001. 

(3)  Brancato,  G.  N. 

1951.  THE    climate'  of    WASHINGTON    COl'NTY.     In  The 

Physical  Features  of  \\'ashington  Count}-,  pub- 
lished by  the  Maryland  Board  of  Natural  Re- 
sources, Dept.  of  GeoL,  Mines  and  ^^'ater 
Resources,  pp.  254-2(56.  Waverly  Press,  Balti- 
more. 

(4)  Cloos,  Ernst. 

1951.  stratigraphy  of  sedimentary  rocks.  In  The 
Physical  Features  of  Washington  County,  pub- 
lished by  the  Maryland  Board  of  Natural  Re- 
sources, Dept.  of  (ieol.,  Mines  and  Water 
Resources,  pp.  17-94.  Waverly  Press,  Balti- 
more. 

(5)   

1951.  igneous  rocks.  In  The  Physical  Features  of 
Washington  County,  published  by  the  Maryland 
Board  of  Natural  Resources,  Dept.  of  GeoL, 
Mines  and  Water  Resources,  pp.  95-97.  Wav- 
erly Press,  Baltimore. 

(6)  Hamilton,  A.  B. 

1956.  comparative  census  of  Maryland  agriculture 

BY  counties.  Univ.  of  Md.  Ext.  Serv.,  Misc. 
Ext.  Pub.  No.  32f,  52  pp. 

(7)  Matthews,  Earle  D. 

1960.   SOIL  survey,  FREDERICK  COUNTY,  MARYLAND.  U.S. 

Dept.  of  Agr.,  Soil  Conserv.  Serv.,  in  coop,  with 
Maryland  Agr.  Expt.  Sta.,  Soil  Survev  Ser.  1956, 
No.  15,  144  pp.,  illus. 

(8)  Thorp,  James,  and  Smith,  Guy  D. 

1949.  HIGHER  categories  OF  SOIL  classification:  order, 

SUBORDER,    AND    GREAT    SOIL    GROUPS.     Soil  Sci. 

67(2):  117-126. 

(9)  U.S.  Department  of  Agriculture. 

1951.  soil  survey  manual.    U.S.  Dept.  Agr.  Handb.  18, 
503  pp.,  illus.    [Replaces  U.S.  Dept.  Agr.  Misc. 
Pub.  274,  the  Soil  Survey  Manual  Pub.  1937.] 
(10)  Waterway's  Experiment  Station,  Corps  of  Engineers. 

1953.  UNIFIED  SOIL  classification  system.  Tech.  Memo. 
No.  3-357,  v.  1. 


Glossary 

AASHO  classification  (engineering).  The  system  of  soil  classifi- 
( atidu  (if  the  American  Association  of  State  Highway  Officials. 

Alluvial  soil.  A  soil  ou  a  flood  plain,  consisting  of  essentially 
unaltered  allnviniii. 

Alluvium.  Fine  material,  as  sand,  silt,  or  clay,  deposited  on  laud 
by  streams  or  rivers. 

Bases.  The  positive,  generally  metallic  elements  or  combination 
of  elements  that  make  up  the  nonacidic  plant  nutrients.  The 
most  important  of  these  in  plant  nutrition  include  calcium 
(Ca),  potassium  (K),  magnesium  (Mg),  and  ammonium 
(NHO. 


12.S 


SOIL  SURVEY  SERIES    1959,  NO.  17 


California  bearing  ratio  (onKineering).  Tlic  rat  io  of  I  lie  al)ilit.v 
ol'  a  soil  lo  support  wciulii,  lo  ilial  of  a  standard  cnislicd 
liiiu'sloiH',  lirst  standardized  in  (.'alifornia  :  aljlircviatod  CVAi. 
Thus,  a  soil  with  a  ("HU  of  l(i  would  support  1C>  lu'rcont 
of  the  load  that  would  he  suijported  hy  the  crushed  limestone, 
per  unit  area  and  with  the  same  degree  of  distortion. 

Channery.  Containing  hetween  15  and  50  percent  Hat  fragments 
of  sandstone,  limestone,  or  schist  uji  to  (i  inches  along  the 
tlie  longer  axis. 

Clay.    SnuiU    mineral    soil   grains,    less    than   ().()()2  millimeter 

( ().(i()(H)7!>  ini-h)  in  diameter;  individual  grains  generally  in- 

\isilile  ev(>n  under  an  oi'dinary  microst-op(>. 
Claypan.    .V   soil  horizon  or  layer  rich   in  clay  and  separale(l 

abruptly  from  the  overlying  layers;  normally  rather  comi)act 

or  massive. 

Cobbly.  Containing  hetween  1.")  and  SO  jiercent  rounded  or  par- 
tially rounded  fragments  of  rock  ranging  from  ;{  to  10 
inches  in  (liainet<>r. 

Colluvial  fans  and  cones.  Formations  at  the  foot  of  a  slope  made 
up  of  (  (illinium. 

Colluvial  .soil.  A  soil  at  a  foot  slope  or  in  a  depression,  consisting 
of  colhnium. 

Colluvium.  Deposits  of  soil  nuiterial  and  rock  fragments  accumu- 
lated at  the  bases  of  slopes  through  the  influence  of  gravity, 
in  s  )me  cases  assisted  by  the  How  of  water.  Such  dei)osits  in 
some  places  are  very  small  and  local ;  in  other  places, 
they  are  very  hirge  and  extend  for  great  distances  out 
over  \alley  tloors. 

Complex,  soil.  An  intimate  mi.xture  of  areas  of  different  soils, 
that  cann.)t  be  indicated  separately  on  a  nuip  of  the  scale 
used,  and  are  therefore  mapped  together  as  a  unit. 

Dispersion,  soil.  The  breaking  d(»wn  of  aggregated  clumps  of  soil 
particles  into  individual  grains  of  clay,  silt,  or  sand. 

Diversion,  or  diversion  terrace.  Any  ridge  of  earth,  generally  a 
terrace,  that  is  built  to  divert  runoff  water  from  its  natural 
course  and.  thus,  lo  pi-otect  downslop(>  areas  from  the  effects 
of  such  runoff. 

Fragipan.  A  very  compact  soil  horizon,  rich  in  silt  and  generally 
relatively  low  in  clay;  normally,  strongly  platy  in  structure 
and  interfering  with  the  penetration  of  roots  and  water. 

Gleization  or  gleying.  The  reduction,  translocation,  and  segrega- 
tion of  soil  compounds,  notably  of  iron,  normally  in  subsoils 
or  substrata  :  a  result  of  poor  aeration  and  drainage,  ex- 
liressed  in  the  soil  by  mottled  colors  dominated  by  gray. 

Gravelly,  (^)ntaining  between  15  and  50  percent  rounded  or 
angular  fragments  of  rock,  not  prominently  flattened,  up 
to  3  inches  in  diam(>ter. 

Great  soil  group.  A  broad  group  of  soils  having  internal  soil 
characltuistics  in  common.  It  includes  one  or  more  soil  fam- 
ilies, and  generally  a  great  number  of  soil  series. 

Hydrologic  soil  groups.  Groups  of  soils  having  similar  rates  of 
inrtltration  by  water,  even  when  wetter,  and  similar  rates 
of  water  transmission  within  the  soil.  There  ai-e  four  such 
groups  of  soils  currently  recognized  by  the  Soil  Conservation 
Service. 

Group  A.  Soils  having  a  high  infiltration  rate  even  when 
thoroughly  wetted,  consisting  chiefly  of  deep,  well- 
drained  to  excessively  drained  sand  and/or  gravel. 
These  soils  have  a  high  rate  of  water  transmission 
and  will  have  a  low  runotf  potential. 

Group  B.  Soils  having  a  moderate  inflltration  rate  when 
thoroughly  wetted,  consisting  chiefly  of  moderately 
deep  to  deep,  moderately  well  drained  to  well  drained 
soils  with  moderately  fine  to  moderately  coarse  tex- 
tures. These  soils  have  a  moderate  rate  of  water  trans- 
mission, and  will  have  a  moderate  runoff  potential. 

Group  C.  Soils  having  a  slow  inflltration  rate  when 
thoroughly  wetted,  consisting  chiefly  of  (1)  soils  with 
a  layer  that  impedes  the  downward  movement  of 
water,  or  (2)  soils  with  moderately  fine  to  fine  tex- 
ture and  slow  infiltration  rate.  These  soils  have  a  slow 
rate  of  water  transmission,  and  will  have  a  high 
runoff  potential. 

Group  D.  Soils  having  a  very  slow  infiltration  rate  when 
thoroughly  wetted,  consisting  chiefly  of  (1)  clay  soils 
with  a  high  swelling  potential.  (2)  soils  with  a  high 
permanent  water  table,  (3)  soils  with  a  claypan  or 
a  clay  layer  at  or  near  the  surface,  and  (4)  shallow 
soils  over  nearly  impervious  materials.    These  soils 


have  a  very  .slow  rate  of  water  transmission,  and  will 
have  a  very  high  runoff  potential. 

Igneous  rock.  A  rock  formed  l>y  the  .solidilicat ion  of  molten  jiri- 
m.iry  rock  material  or  magma. 

Internal  drainage.  That  quality  of  .soil  that  jH-rmits  the  down- 
wai-d  flow  of  excess  water  through  it. 

Liquid  limit.  The  moisture  content  at  which  a  soil  material 
passes  from  a  jilastic  to  a  liquid   (free-flowing)  state. 

Low-Humic  (Jley  soils.  A  great  soil  group  in  which  the  soils  are 
characterized  by  a  weak  Ai  horizon  over  a  mottled  or 
partially  gleyed  mineral  B  horizon  that  is  normally  some- 
what finer  in  texture  than  the  A  horizon. 

Maximum  density.  The  greatest  amount  of  soil  that  can  be 
compacted  into  any  unit  of  volume;  oxi)res.sed  as  jxiunds 
of  dry  soil  per  cubic  foot. 

Mechanical  analysis  of  soil.  The  determination  of  the  percentage 
of  the  soil  particles  of  all  sizes — gravels,  sands,  silts,  clays, 
and  all  their  standard  subdivisions;  based  on  the  mineral  soil 
only,  free  of  wiiter  and  organic  matter,  drain  .size  refers  to 
the  size  limits  of  any  particular  fraction  of  the  si)il,  and 
grain  size  dixtributio)!  refers  to  the  proportions  of  the 
various-sized  fractions  in  tlie  whole  mineral  soil. 

Metamorphic  rocks.  Rocks  of  any  origin  that  have  been  so 
altered  by  heat,  pressure,  and  movement  that  their  j)hysical 
nature  lias  become  completely  changed.  Such  rocks  are 
nearly  always  crystalline. 

Morphology,  soil.  The  ])hysical  constitution  of  the  soil,  expressed 
in  the  kinds  of  siil  horizons,  their  thickness  and  arrange- 
ment in  the  itrolile,  ami  the  texture,  sti-ucture,  consistence, 
porosit.v,  and  color  of  each  horizon. 

Poorly  graded  (engineering).  A  soil  consisting  of  particles  chiefly 
of  the  same  or  very  nearly  the  same  size  or  diameter;  having 
a  narrow  range  of  particle  size  and,  thus,  poor  grain-size 
distribution.  Such  a  soil  can  be  increased  in  density  only 
slightly  hy  compaction. 

Reaction,  soil.  The  degree  of  acidity  of  the  soil  expressed  in  i)II 
\alues,  or  in  words,  as  follows: 


/>//  pH 

Kxtremely  acid  below  4..'5  Mildly  alkaline  7.4  to  7.8 

Very  strongly  acid  4.5  to  5.0  Moderately  alkaline  7.9  to  8.4 

Strongly  acitl  5.1  to  5.5  Strongly  .alkaline  8.5  to  9.0 

-Medium  acid  5. G  to  6.0  Very  strongly  alkaline    9.1  and 

Slightly   acid   6.1  to  6.5  higher 

.Neutral   G.6  to  7.3 


Ked-Yellow  Podzolic  soils.  A  great  soil  group  in  which  the  soils 
are  characterized  by  a  thin,  organic-mineral  Ai  horizon,  a  light- 
colored,  bleached,  leached  Aj  horizrin,  and  a  flner  textured,  I'ed 
to  yellow  B  horizon  ;  acid  ;  base  saturation  in  the  B  horizon 
is  normally  less  than  35  percent  and  decreases  with  depth. 
Rocks.    The  principal  kinds  of  rocks  in  this  county  are — 

Chert.    A  flintlike  rock,  generally  found  as  an  impurity  in 

limestone  or  other  sedimentary  rocks. 
Limestone.    A  rock  made  up  principally  of  calcium  carbonate, 

or,  in  some  cases,  magnesium  carbonate. 
Metaandesite.    A   metamorphosed    igneous   rock  moterately 

rich  in  iron  and  other  metallic  elements ;  chemically  similar 

to  andesite. 

Metabasalt.  A  metamorphosed  igneous  rock  very  rich  in  iron 
and  other  metallic  elements;  chemically  .similar  to  basalt. 

Metarhyolite.  A  rock  similar  to  metaandesite  but  lower  in 
ircm  and  other  metallic  elements ;  chemically  similar  to 
granite. 

Phyllite.  Refers  to  the  appearance  or  shape  of  a  rock,  mean- 
ing leaflike ;  thin,  flattened,  and  generally  .slightly  wavy 
or  crinkled. 

Quartz.    A  mineral  that  consists  of  silica,  Si02. 

Quartzite.  A  sandstone  or  other  quartz-bearing  rock  that  has 

been  altered  by  heat  and  pressure  mitil  it  is  definitely 

fused. 

Sandstone.  A  rock  made  up  chiefly  of  grains  of  silica  sand 
cemented  together. 

Schist.  A  rock,  originally  either  sedimentary  or  igneous,  that 
has  been  altered  by  heat  and  pressure  until  it  is  crystalline 
and  has  a  foliated  structure,  and  is  more  or  less  easily  split 
into  slabs  or  sheets. 

Shale.  A  rock  made  up  of  grains  of  silt  or  clay,  or  both, 
sometimes  with  a  little  sand,  that  have  been  cemented 
together ;  normally  occurs  in  masses  of  flattened  fragments. 


WASHINGTON  COUNTY,  MARYLAND 


120 


Sand.  Ilock  or  ininoral  fragineuts,  visible  to  the  normal  naked 
vyo,  l)(M\v(<(Mi  0.05  nnllinicter  (0.002  inch)  and  2.0  niiliuieter.s 
(O.OTl*  iiirli)  in  (liuiiictor.  As  a  textural  class,  a  soil  that  is 
!)(>  iiorcoiit  or  niori>  .siuul. 

Sedimentary  rock.  Uock  formed  by  the  consolidation  of  any  of 
many  kinds  of  sedimenl.  Sandstone,  shale,  and  limestone  are 
common  sedimentary  rocks. 

Shaly.  Refers  to  .soil  material  of  wliicli  l.'j  to  50  in'rccnt  consists 
of  flattened  fra.uineiUs  of  sliale  less  than  (!  inches  alons;  the 
lons'er  axis.  A  sin>;le  i)iece  is  a  shale  fragment.  I^arger  frag- 
ments are  fhn/s  av  fldt/stoHcs. 

Shrink-swell  potential.  Tli(>  ability  of  a  soil  to  lo.se  Vdhinic  willi 
a  loss  in  water  content  and  to  gain  volume  with  an  increase 
in  water  content. 

Silt.  Small  naneral  soil  grains  ranging  from  0.002  nullimeter 
(O.OOOOTi)  inch)  to  0.05  millimeter  (0.002  inch)  in  diameter; 
not  visible  to  the  naked  eye  but  readily  vi.sil)le  under  a 
microscope. 

Soil  consistence.    The  characteristics  of  soil  material  that  are 
expressed  by  the  degree  and  kind  of  cohesion  and  adliesion, 
or  by  the  resistance  of  the  soil  material  to  deformation  or 
rupture.  When  dry,  a  sail  is  said  to  be  loo.sc,  soft,  slightly 
hani,  liiinl,  rcnj  hard,  or  c.rtrcinel ii  hard.  When  moist,  a  soil 
is  said  to  be  loose,  very  friable,  friable,  firm,  very  firm,  or 
extremely  firm.   When  wet,  a  soil  is  said  to  be  nonplustic, 
slifjhtJy  i)lastic,  plastic,  or  very  plastic,  and  also  nonsticky, 
slifihtlii  sticky,  sticky,  or  very  sticky. 
Soil  erosion.    The  removal  of  soil  material  by  geologic  agencies, 
principally  wind  and  running  water.  Accelerated  erosion  refers 
to  loss  of  soil  material  brought  about  by  the  activities  of  man. 
Soil  erosion  in  Washington  County  is  most  commonly  caused 
by  water  and  can  be  classified  as  sheet  erosion  (the  removal 
of  soil   material  without   the  development   of  conspicuous 
channels),  rill  erosion  (which  produces  small  channels),  and 
yiilly  erosion  (which  produces  large  channels). 
Soil  horizon.   A  layer  of  soil,  approximately  parallel  to  the  sur- 
face, having  characteristics  produced  by  soil-forming  proc- 
esses and  differing  in  one  or  more  ways  from  adjacent  horizons 
in  the  same  soil  profile. 
A  horizon.    The  master  horizon,  consisting  of  (1)  one  or  more 
mineral  horizons  of  maximum  organic  accumulation;  or  (2) 
surface  or  subsurface  horizons  that  are  lighter  in  color  than 
the  underlying  horizon  and  have  lost  clay  minerals,  iron, 
and  aluminum,  with  resultant  concentration  of  the  more 
resistant  minerals;  or  (3)  hoi'izons  belonging  to  both  of 
these  categories. 
B  horizon.    The  master  horizon  of  altered  material  characterized 
by  (1)  an  accumulation  of  clay,  iron,  or  aluminum,  with 
accessory  organic  matter;  or  (2)  blocky  or  prismatic  struc- 
ture together  with  other  characteristics,  such  as  stronger 
colors,  unlike  those  of  the  A  horizon  or  the  underlying 
horizons  of  nearly  unchanged  material;  or  (3)  character- 
istics of  both  these  categories.  Commonly,  the  lower  limit  of 
the  B  horizon  corresponds  with  the  lower  limit  of  the  solum. 
C  horizon.    A  layer  of  unconsolidated  material,  relatively  little 
affected  by  organisms  and  presumed  to  be  similar  in 
chemical,  physical,  and  mineralogical  composition  to  the 
material  from  which  at  least  a  portion  of  the  .solum  has 
developed. 

D  horizon.  Any  stratum  underlying  the  C  horizon,  or  the  B  if 
no  C  is  present,  which  is  unlike  the  C  or  unlike  the  material 
from  which  the  solum  has  been  formed. 

Any  major  horizon  (A,  B,  C,  or  D)  may  or  may  not  consist  of 
two  or  more  subdivisions  or  subhorizons,  and  each  sub- 
horizon  in  turn  may  or  may  not  have  subdivisions.  For  the 
kinds  of  subdivisions  that  may  exist,  along  with  their 
designations  and  definitions,  the  reader  is  referred  to  the 
Soil  Surve.v  Mainial. 
Soil  permeability.  That  quality  of  a  soil  that  enables  it  to  trans- 
mit water  or  air. 


Soil  profile.  A  vcrlical  section  of  IIji-  miII  lliioii;;b  mII  liorizons 
and  extending  into  tiu!  jiarent  material.  (See  also  I'arent 
material ;  Soil  horizon.) 

Soil  series.  A  group  of  soils  having  the  same  profile  character- 
istics, and  the  same  general  range  in  color,  structure,  con- 
sistence, and  sequence  of  horizi>ns ;  tin;  same?  general  conditions 
of  relief  and  drainage;  and  generally  a  common  or  similar 
origin  ami  mode  of  formation. 

Soil  structure.  The  arrangement  of  the  indi\i(lual  soil  particles 
into  aggregates  that  ha\e  definite  sliape  and  pattern.  Common 
kinds  of  structure  in  Washington  (jounty  are  sini/lc  f/rain, 
cnunh.  (/raniilar,  blocky,  si<  liinif/nlar  hlockii,  platy,  and  massive. 

Soil  texture.  The  relative  proportions  of  sand,  silt,  and  clay  jtar- 
ricles  in  the  soil.  A  coarse-textured  soil  is  one  high  in  sand; 
a  tine-textured  soil  coidains  a  large  proportion  of  clay.  (See 
Saiul;  Silt;  Clay.) 

Soil  type.  A  subdivision  of  the  soil  series  based  on  the  texture 
of  the  surface  soil;  for  example,  in  the  Huntington  .series  in 
Wa.shington  County  there  are  3  types — Huntington  fine  sandy 
loam,  Huntington  gravelly  loam,  and  Huntington  silt  loam. 

Sols  Bruns  Acides.  A  great  soil  group  in  which  the  soils  are 
characterized  by  a  weak  Ai  horizon,  a  very  weak  A2  horizon  or 
none,  and  a  B  horizon  that  is  differentiated  almost  entirely 
by  color ;  no  significant  increase  in  clay  minerals  in  the  B 
horiz(ni  as  compared  to  the  A  horizon ;  little  structural 
development;  low  degree  of  base  saturation  and  very  strong 
acidity. 

Solum.  The  genetic  soil  developed  by  soil-fornuug  processes ;  the 
A  and  B  horizons;  does  not  include  the  parent  material  (C 
horizon) . 

Stony.  Containing  enough  stones  more  than  10  inches  in  diameter 
to  interfere  with,  but  not  prevent,  cultivation  of  inlertilletl 
cro])s.  A  very  stony  soil  contains  enough  stones  to  make 
tillage  impractical  and  to  bar  the  use  of  farm  machinery. 

Subgrade  (engineering).  The  substratmn,  either  in-place  or  fill 
material,  prepared  for  highway  construction  :  does  not  include 
stalnlized  base  course  or  actual  paving  materials. 

Subgrade  modulus  (engineering).  The  resistance  of  the  soil  to 
UTiit  areas  displacement  under  load,  expressed  in  pounds  per 
square  inch.  Hence,  if  a  load  of  1,000  pounds  on  100  square 
inches  of  surface  penetrates  1  inch,  the  modulus  is  10. 

Subsoil.  Technically,  the  B  horizon  of  a  soil ;  in  more  general 
terms,  that  part  of  the  soil  profile  below  plow  depth. 

Substratum.  Any  layer  beneath  the  B  horizon ;  may  be  a  con- 
forming (C)  horizon  or  an  unconforming  (D)  horizon. 

Surface  soil.  That  part  of  the  upper  profile,  to  a  depth  of  about 
8  inches,  normally  disturbed  by  plowing ;  more  technically,  the 
A  horizon. 

Terrace  (geological).  An  old  alluvial  plain,  commonly  flat  or 
smooth  but  in  some  places  sloping  and  dissected,  bordering  a 
stream,  a  lake,  or  the  sea ;  frequently  called  a  second  bot- 
tom, as  contrasted  to  the  present  flood  plain ;  seldom  subject 
to  overflow. 

Undifferentiated  mapping  unit.  A  soil  mapping  unit  that  consists 
of  two  or  more  soils  or  land  tyijes  that  are  not  ordinarily 
geographically  associated. 

Unified  soil  classification  system  (engineering).  The  system 
of  mechanical  soil  classification  of  the  Corps  of  Engineers, 
Department  of  the  Army.  Used  by  the  Soil  Conservation  Serv- 
ice, The  Bureau  of  Reclamation,  and  other  agencies  and 
organizations  in  works  dealing  with  soils  engineering. 

Upland  (geological).  Land  consisting  of  materials  unworked  by 
water  in  recent  geological  time  and  ordinarily  lying  at  higher 
elevations  than  the  alluvial  plains  and  the  terraces. 

Well  graded  (engineering).  A  soil  consisting  of  particles  well 
distributed  over  a  wide  range  hi  size  or  diameter.  Such  a 
soil  normally  can  be  easily  increased  in  density  and  bearing 
properties  by  compaction. 


130 


SOIL  SURVEY  SERIES   1959,  NO.  17 


CUIDK  TO  MAPPING  UNITS 

[See  table  4,  p.  9,  for  the  approximate  acreage  and  proportionate  extent  of  the  soils,  and  table  5,  p.  54,  for  estimated  average  acre  yields. 
To  learn  about  use  of  the  soils  for  woodland,  see  the  section  beginning  on  p.  81 ;  for  information  about  the  engineering  uses  of  the  soils, 
including  us(>  for  irrigation  and  for  sewage  disposal,  see  the  section  beginning  on  p.  84.  Dashes  indicate  soil  not  suitable  for  irrigation] 


Map 

symbol  Mapping  unit  Page 

AsB  Ashton  fine  sandy  loam,  0  to  5  percent  slopes   13 

At  .\tkins  silt  loam   14 

BaA  Benevola  clay  loam,  0  to  3  percent  slopes   15 

BaB2         Benevola  clay  loam,  3  to  8  percent  slopes,  moder-  15 
ately  eroded. 

BaC2         Benevola  chiy  loam,  8  to  15  percent  slopes,  mod-  15 
erately  eroded. 

BaC3         Benevola  clay  loam,  8  to  1  5  jjercenl  slopes,  sev-  15 
erely  eroded. 

BcB2         Berks  channery  loam,  ridges,  0  to  10  percent  15 

slopes,  moderately  eroded. 
BcC2         Berks  channery  loam,  ridges,  10  to  20  percent  15 

slopes,  moderately  eroded. 
BcC3         Berks  channery  loam,  ridges,  10  to  20  p(>rcent  15 

sloj)es,  severely  eroded. 
BcD2        Berks  channery  loam,  ridges,  20  to  30  percent  15 

slopes,  moderately  eroded. 

BeB  Berks  shaly  silt  loam,  0  to  8  percent  slopes   15 

BeB2         Berks  shaly  silt  loam,  3  to  8  percent  slopes,  mod-  16 

erately  eroded. 

BeC2         Berks  shaly  silt  loam,  8  to  15  percent  slopes,  mod-  16 
erately  eroded. 

BeD2        Berks  slialy  silt  loam,  15  to  25  percent  slopes,  16 

moderately  eroded. 
BkB2        Berks  silt  loam,  ridges,  0  to  10  percent  slopes,  16 

moderatelv  eroded. 
BkC2        Berks  silt  loam,  ridges,  10  to  20  percent  slopes,  16 

moderately  eroded. 
BkC3        Berks  silt  loam,  ridges,  10  to  20  percent  slopes,  16 

severely  eroded. 

BkD2        Berks  silt  loam,  ridges,  20  to  30  percent  slopes,  16 

moderately  eroded. 
BoE3         Berks  soils,  ridges,  20  to  45  percent  slopes,  sev-  16 

erely  eroded. 

BoF  Berks  soils,  ridges,  30  to  60  percent  slopes   16 

BrB2         Braddock  and  Thurmont  gravelly  loams,  3  to  8  17 

percent  slopes,  moderately  eroded. 
BrC2         Braddock  and  Thurmont  gravelly  loams,  8  to  15  17 

percent  slopes,  moderately  eroded. 
BrD  Braddock  and  Thurmont  gravelly  loams,  15  to  17 

25  percent  slopes. 

BtB  Brinkerton  silt  loam,  0  to  8  percent  slopes   17 

BuA  Buchanan  gravelly  loam,  0  to  3  percent  slopes. _  18 

BuB2        Buchanan  gravelly  loam,  3  to  8  percent  slopes,  18 

moderately  eroded. 
BuC2        Buchanan  gravelly  loam,  8  to  15  percent  slopes,  18 

moderately  eroded. 
BuD2        Buchanan  gravelly  loam,  15  to  25  percent  slopes,  18 

moderately  eroded. 
CaB2         Calvin  channery  fine  sandy  loam.  3  to  10  percent  18 

slopes,  moderately  eroded. 
CcB2         Calvin  channery  loam,  3  to  10  percent  slopes,  19 

moderately  eroded. 
CcC2         Calvin  channery  loam,  10  to  20  percent  slopes,  19 

moderately  eroded. 
CcD  Calvin  channery  loam,  20  to  30  percent  slopes..  19 

CcD2        Calvin  channery  loam,  20  to  30  percent  slopes,  19 

moderatel.v  eroded. 
CcE  Calvin  channery  loam,  30  to  45  percent  slopes..  19 

CcF  Calvin  channery  loam,  45  to  60  percent  slopes. .  19 

CmB2        Calvin  shaly  loam,  0  to  10  percent  slopes,  mod-  19 

erately  eroded. 

CmC2        Calvin  shaly  loam,  10  to  20  percent  slopes,  mod-  19 
erately  eroded. 

CmC3        Calvin  shaly  loam,  10  to  20  percent  slopes,  se-  19 
verely  eroded. 

CmD         Calvin  shaly  loam,  20  to  30  percent  slopes   19 

CmE         Calvin  shaly  loam,  30  to  45  percent  slopes   19 

CnB2        Calvin-Berks  channery  loams,  0  to  10  percent  19 
slopes,  moderately  eroded. 


Woodlnnd 

Seivage 

Capabilitij 

Irrigation 

suitubililjj 

disposal 

unit 

Page 

■soil  group 

Page 

group 

Page 

group 

Page 

16 

65 

1 

114 

Fl 

82 

8 

121 

IIIw-l 

74 

FI 

82 

121 

IIs-1 

69 

1  17 

I'l 

82 

1 

1  17 

IIe-19 

68 

]  1  7 

11 

82 

1 

1 1 7 

IlIe-30 

73 

7 

1  17 

Fl 

82 

2 

118 

I\'e-1 

75 





Fl 

82 

2 

118 

IIs-7 

70 

4 

1  11 

F2 

83 

4 

119 

IIIe-32 

73 

4 

1  14 

F2 

83 

5 

120 

IVe-32 

77 





F2 

83 

5 

120 

IVe-32 

77 





F2 

83 

6 

120 

III.s-2 

74 

4 

114 

F2 

83 

4 

119 

IIIs-2 

74 

4 

1  1  4 

F2 

83 

4 

1  19 

T\'e  32 

4 

1 1 4 

F2 

83 

5 

120 

Me-3 

78 





F2 

83 

6 

120 

IIs-7 

70 

4 

114 

F2 

83 

4 

119 

ITIe-32 

73 

4 

114 

F2 

83 

5 

120 

IVe-32 

77 

r2 

83 

5 

120 

IVe~32 

77 





F2 

83 

6 

120 

Vne-3 

80 





F2 

83 

6 

120 

Vne-3 

80 

F3 

83 

6 

120 

IIe-4 

!; 
o 

Fl 

82 

1 

1 17 

Iire-4 

70 

5 

1 15 

Fl 

82 

2 

118 

1  *  e  o 

Fl 

82 

3 

119 

IIIw-1 

74 

Fl 

82 

7 

120 

IIw-1 

68 

2 

"ii4 

F2 

83 

7 

120 

JIe-13 

67 

2 

114 

F2 

83 

7 

120 

II]e-13 

72 

2 

114 

F2 

83 

7 

120 

IVe-9 

76 





F2 

83 

7 

120 

IIe-10 

67 

1 

114 

F2 

83 

4 

119 

IIe-10 

67 

4 

114 

F2 

83 

4 

119 

IIIe-10 

71 

4 

114 

F2 

83 

5 

120 

IVe-10 

76 





F2 

83 

6 

120 

IVe-10 

76 

F2 

83 

6 

120 

^Te-3 

78 

F2 

83 

6 

120 

Vne-3 

80 

. 

F2 

83 

6 

120 

IIIs-2 

74 

"114 

F2 

83 

4 

119 

IVe-32 

77 

4 

114 

F2 

83 

5 

120 

VIe-3 

78 

F2 

83 

5 

120 

VIe-3 

78 

F2 

83 

6 

120 

VIIe-3 

80 

F2 

83 

6 

120 

IIs-7 

70 

4 

'ii4 

F2 

83 

4 

119 

WASHINGTON   rOTINTY,  MAHYLANI) 


131 


GUIDK  TO 


Map 

symbol  Mtipiniiij  iiiiil  l'<i!l' 

CnC2         Ciilvin-R(M-ks  phiuuu'ry  loams,  10  to  20  pcrccnl  19 

slopes,  inod(>rately  eroded. 
CnC3         Calvin- Herks  ehaiiiierv  loams,  3  to  20  perccnl,  Id 

slo])es,  severely  eroded. 
CnD2         Calviii-Herks  ehainierv  loams,  20  lo  30  pereeiil  19 

slopes,  moderately  eroded. 
CnF2         Calvin-Perks  elia]ui(>rv  loams.  30  to  (iO  percent,  10 

slopes,  moderately  eroded. 
CoB2         Calvin-Montevallo  shaly  loams,  0  to  10  |)ercent  10 

slopes,  moderatelv  eroded. 
CoC2         Calvin-Montnvallo  shaly  loams,  10  to  20  pereent  10 

slopes.  moderat<>lv  eroded. 
CoD2         Calvin-MoiHi-vallo  shaly  loams,  20  to  30  percent  10 

sk>pes,  moderately  eroded. 
CoE3         Calvin-Mont  ewallo  shaly  loams,  20  to  45  percent  20 

slopes,  severely  eroded. 
CoF  Calvin-.Montevallo  shaly  loams,  30  to  60  percent  20 

slo])es. 

CrB  Chandler  silt  loam  and  channery  silt  loam,  0  to  20 

1(1  I  ercenl  sloja'S. 
CrB2         Chandler  silt  loam  and  channery  silt  loam,  3  to  20 

10  percent  slo];es,  moderatel\  eioded. 
CrC2         Cliandler  silt  loam  and  channery  silt  loam,  10  to  20 

20  percent  slopes,  nioderately  eroded. 
CrD  Chandler  silt  loam  and  channery  silt  loam,  20  to  20 

30  percent  slopes. 

Cs  Chewacla  ijravellv  sandy  loam   21 

Ct  Chewacla  silt  loain   21 

Cu  Chewacla  stony  silt  loam   21 

Cv  Con'iaree  silt  loam  and  gravell}'  loam   21 

CwA  Corydon  clay  loam,  0  to  3  percent  slopes   22 

CwB2        Corydon  clay  loam,  3  to  8  percent  slopes,  moder-  22 

ately  eroded. 

CwC2        Corydon  clay  loam,  8  to  15  percent  slopes,  mod-  22 
erately  eroded. 

CxC  Corydon  extremely  rocky  clay  loam_,  0  to  15  per-  22 

cent  sl()])es. 

CyE2         Corydon  ^(•ry  rocky  clay  loam,  3  to  45  pereent  22 

slopes,  moderately  eroded. 
DeD  Dekalb  and  Leetonia  very  stony  sandy  loams,  22 

0  to  25  percent  slo]5es. 
DeE  Dckall)  and  Leetonia  ^•ery  stony  sandy  loams,  22 

25  to  45  i)ercent  slopes. 
DeF  Dekalb  and  Leetonia  very  stony  sandy  loams,  23 

45  to  60  percent  slopes. 
DkD         Dekalb  and  Lehew  very  stony  loams,  0  to  25  23 

percent  slopes. 

DkE  Dekalb  and  Lehew  very  stony  loam.s,  25  to  45  23 

percent  slopes. 

DmA         Duffield  silt  loam,  0  to  3  percent  slopes   23 

DmB2       Duffield  silt  loam,  3  to  8  percent  slopes,  moder-  23 
ately  eroded. 

DmC2       Duffieid  silt  loam,  8  to  15  percent  slopes,  moder-  23 
ately  eroded. 

DmD2       DufReid  silt  loam,  15  to  25  percent  slopes,  moder-  24 
ately  eroded. 

DmD3       DufReid  silt  loam,  8  to  25  percent  slopes,  severely  23 
eroded. 

DuC  Duffield  extremely  rocky  silt  loam,  0  to  15  per-  23 

cent  slopes. 

DvC  Duffield  very  rocky  silt  loam,  3  to  15  percent  24 

slopes. 

DvE2        Duffield  very  rocky  silt  loam,  8  to  45  percent  24 

slopes,  moderately  eroded. 
DyB2        Dunmore  cherty  silt  loam,  3  to  8  percent  slopes,  24 

moderately  eroded. 
DyC2        Dunmore  cherty  silt  loam,  8  to  15  percent  slopes,  24 

moderately  eroded. 

Dz  Diuming  and  Melvin  silty  clay  loams   25 

EdC  Edgemont  and  Laidig  channery  loams,  0  to  12  25 

percent  slopes. 

EdD2        Edgemont  and  Laidig  channery  loams,  5  to  20  25 

percent  slopes,  moderately  eroded. 
EdE2        Edgemont  and  Laidig  channery  loams,  20  to  35  26 

percent  slopes,  moderately  eroded. 
EdF2         Edgemont  and  Laidig  channery  loams,  35  to  60  26 

percent  slopes,  moderately  eroded. 


UNITS  Continued 


\V  iioilldiiil 

Sfwugn 

( '(I paliililii 

/  rritjill  ion 

auilahililij 

flixpo/ifil 

II  ri  it 

xoil  (/roii/i 

/ i/t' 

(/roup 

Paf/r, 

group 

I  lie  32 

73 

4 

1  1  1 

I'2 

83 

5 

120 

IVe  32 

77 

J'2 

83 

5 

120 

l\  e  32 

77 





1'2 

83 

6 

120 

Vile  3 

80 





F2 

83 

G 

120 

Ills  2 

74 

4 

114 

F3 

83 

4 

]  19 

n'e  32 

77 

4 

1 14 

F3 

83 

5 

120 

Vie  3 

78 





F3 

83 

6 

120 

VIIe-3 

80 





F3 

83 

6 

120 

Vlle-S 

80 





F3 

83 

6 

120 

lie- 10 

67 

4 

114 

F2 

83 

4 

119 

lie- 10 

67 

4 

114 

F2 

83 

4 

119 

IVe- 10 

76 



F2 

83 

5 

120 

Vie- 3 

78 

F2 

83 

120 

IIw— 7 

69 

1 

1  1  4 

Fl 

82 

8 

121 

IIw-7 

69 

3 

114 

Fl 

82 

8 

121 

Vs-2 

77 

Fl 

8 

121 

1-6 

65 

3 

114 

Fl 

82 

8 

121 

Ills  2 

74 

117 

F2 

83 

4 

119 

IIIe-30 

73 

7 

117 

F2 

83 

4 

119 

IVe-1 

75 

7 

117 

F2 

83 

5 

120 

VIIs-l 

80 





F2 

83 

5 

120 

VIs-1 

79 





F2 

83 

6 

120 

VI  Is -2 

80 





F4 

83 

3 

119 

VIIs-2 

80 

F4 

83 

3 

119 

VIIs-2 

80 

F4 

83 

3 

119 

VIIs-2 

80 

F3 

83 

3 

119 

VIIs-2 

80 

F3 

83 

3 

119 

I-l 

64 

5 

115 

Fl 

82 

I 

117 

IIe-1 

65 

5 

115 

Fl 

82 

1 

117 

IIIe-1 

70 

5 

115 

Fl 

82 

2 

118 

IVe-1 

75 





Fl 

82 

3 

119 

IVe-1 

75 





Fl 

82 

2 

118 

VIIs-1 

80 





Fl 

82 

2 

118 

VIs-1 

79 

Fl 

82 

2 

118 

VIs-1 

79 

Fl 

82 

3 

119 

IIe-1 

65 

a 

1 1  Pi 

1  i  o 

4 

119 

IIIe-1 

70 

R 
u 

116 

120 

VIw-1 

79 

Fl 

82 

8 

121 

IIe-4 

66 

5 

'lis 

Fl 

82 

1 

117 

IIIe-4 

70 

5 

115 

Fl 

82 

2 

118 

IVe-3 

75 

Fl 

82 

3 

119 

VIe-2 

78 

Fl 

82 

3 

119 

132 


SOIL  SURVKY   SKKIES   19.5  9,  MO.  17 


GUIDE  TO  MAPPFNG  UNITS— Coiil iiiucd 


Woodland 

Sewage 

Map 

Iai  pdhilitji 

1  rrigatioii 

suitabilily 

disposal 

si/inhol 

Afapping  unit 

PtKje, 

unit 

Page 

soil  group 

I 'age 

group 

Page 

group 

Page, 

EgA 

T'jfl*' cniont  iiiul  Ijiiicli^'  very  stony  loutus,  0  to  /) 

2() 

Vs-2 

77 

Fl 

82 

I 

1 1 7 

])d'c*('nt  slo])os. 

EgD 

l^^diioniont  und  Luidi^  \'<'ry  stoiiv  loiims,  5  to  )i5 

20 

\'I.s-2 

79 

Fl 

82 

percent  slopes. 

EoF 

Kdjicinont  uiid  I^iiidiii  \'er\'  stoiiN'  loixniSj  35  to  (iO 

2(> 

VI  Is  2 

80 

Fl 

82 

percent-  slopt^s. 

EhB2 

I^lliber  chert-y  loiini^  5  to  1*2  i.erceiit  slopes,  niod- 

2G 

IIe-2() 

()8 

,5 

1  i.'j 

Fl 

82 

2 

1 1 8 

EhD2 

ICllil)er  chei't  \'  loiunj  12  to  25  ]M'rc(Mit  sloj)eSj  mod- 

2() 

IIIe-2() 

72 

5 

1 1 5 

Fl 

82 

(*r;itely  eroded. 

EhE2 

iLllibcr  cliert  s'  loiin^j  25  to  -15  ])ei'('ent  slop(*s,  mod- 

2() 

^'Ie-l 

78 

Fl 

82 

(M'utel\'  eroded. 

EhF 

I'Uilif'!*  flicrtv  lojiiii   4.5  to  .5.5  i"if*reent,  slmif^s 

2() 

\IIe  1 

79 

Fl 

82 

Em 

1  \ !'( > ( 1  i ' ( i  hind  pr(HMistone  nuit(*ri;ds 

27 

VIIe-2 

80 

F4 

83 

En 

l^roded  l*uul  lin^estone  nititeriids 

27 

Vile  1 

79 

F4 

83 

Er 

I'jroded  hind,  sandstone  ;ind  (luartzite  materials- 

27 

VIIe-2 

80 

F4 

83 

Es 

l^roded  land  shale  and  schist  n'aterials 

27 

Vile- 3 

80 

F4 

83 

(; 

120 

EtA 

I'.towah  ji,ra\'ell\'  loam,  0  to  3  ])ercent  slo[)CS  

27 

I-l 

64 

5 

1 15 

Fl 

82 

1 

1 17 

EtB2 

ICtowidi  ^ra\'ell\'  loam,  3  to  8  jjercent  slopes. 

27 

He- 1 

05 

5 

1 15 

Fl 

82 

1 

1 17 

nioderal(*lv  erodc^d. 

EtC2 

ijtowah  ^rtiA'ellv  loanij  8  to  15  ])ercent  slopes, 

27 

I  He  1 

70 

5 

1 15 

Fl 

82 

2 

118 

Tnoderatel\'  eroded. 

EtD2 

Ktowah  f.'Tavellv  loam,  15  to  25  percent  slo])es. 

28 

I\'e  1 

75 

Fl 

82 

moderatelv  eroded. 

E  w  A 

Pitowah  silt  loam  0  to  3  pt^rcent  slopes 

28 

I-l 

64 

1 15 

Fl 

82 

I 

1 17 

EwB2 

Ktowah  silt  loam,  3  to  8  percent  slopes,  moder- 

28 

He  1 

05 

5 

1  15 

Fl 

82 

1 

117 

atelv  (*ro(ied. 

EwC2 

Ktowah  silt  loani,  8  to  15  percent  sloj)es,  moder- 

28 

IIIe-1 

70 

5 

1 15 

Fl 

82 

2 

118 

'1 1  f '1  V*  f 'Vr  >f  1  r  »f i 

FaB 

Pauquior  cliaiuiorv  loam,  0  to  5  porccnt  slopes  

28 

1-4 

04 

5 

1 15 

Fl 

82 

1 

1 17 

FaB2 

Faiicjuicr  chaniuu'v  loani,  5  to  10  pcrcoiit  slop<^s, 

28 

IIe-4 

()0 

5 

1 15 

Fl 

82 

1 

117 

ni()fl('rat(*lv  (M'odod. 

FaC2 

Faucjiiit'i*  ('haiiiu*rv  loaiii,  10  to  20  percent  slop(*Sj 

28 

IIIe-4 

70 

5 

1 1 5 

Fl 

82 

2 

1 18 

iTiocicrat  elv  ci'odecL 

FaE2 

FuiiQuitT  ('haiiiu*rv  loam,  20  to  35  percent  slopes, 

28 

IVe-3 

75 

Fl 

82 

iiio(i(*rut el\'  eroded. 

FrE 

FaiKiiii*'!'  \'('rv  stony  loam,  o  to  35  percent  slopes 

29 

VIs-2 

79 

Fl 

82 

FsA 

FaiKiuicr  silt  loani  0  to  3  perct^nt  slopes 

29 

1-4 

64 

5 

115 

Fl 

82 

1 

117 

FsB2 

PaiKiuier  silt  loam,  3  to  10  percent  slopes,  mod- 

29 

IIe-4 

00 

5 

1 15 

Fl 

82 

1 

117 

erat(*lv  ei'oded. 

FsC2 

Fauquier  silt  loam,  10  to  20  jx'rccnt  slopes,  mod- 

29 

IIIe-4 

70 

5 

1 15 

Fl 

82 

2 

1 18 

erat  el v  (^roded. 

FtC2 

Fauquier  silt  loam,  shallow,  3  to  20  percent  slojx's. 

29 

I  Ve-3 

75 

F2 

83 

5 

120 

FuD 

FrjinU'st owii  evtT'enielv  rfiekv  sill    lo*ini    0  t(i  2n 

29 

VIIs-1 

80 

Fl 

82 

3 

1 19 

T'iPT'Pf^ll  f   sl  nt"if^S 

Fu  E 

Fran kst own  ext re mel v  roc k\'  siji  W)am   2o  to  -lo 

29 

VIIs-1 

80 

Fl 

82 

3 

1 19 

percent  slopes. 

FvC2 

Frankstown  very  rocky  silt  loam,  3  to  15  percent 

29 

VIs-1 

79 

Fl 

82 

2 

118 

ctlones   nioderjii f  1  v  ei'oded 

FvC3 

Frankstown  y^'ry  rocky  silt  loam,  8  to  15  percent 

29 

VIIs-1 

80 

Fl 

82 

2 

1 18 

slopes,  seyerel y  eroded. 

FvE2 

Frankstown  yery  rocky  silt  loam,  15  to  45  perct'nt 

29 

VIs-1 

79 

Fl 

82 

3 

119 

slopes,  mode  I' at  el  \*  eroded. 

Fw  A 

Frankstown  and  Duftield  channery  silt  loams  0 

30 

I-l 

04 

5 

115 

Fl 

82 

1 

117 

to  ^  npT*f*P7it  sloTies 

FwB2 

Frankstown  and  Duffield  channery  silt  loams,  3 

30 

IIe-1 

65 

5 

115 

Fl 

82 

1 

117 

to  8  percent  slo])es,  moderately  eroded. 

FwBB 

Frankstown  and  Duffield  channery  silt  loams,  0 

30 

IIIe-30 

73 

Fl 

82 

1 

117 

to  8  percent  slopes,  seyerely  eroded. 

FwC2 

Frankstown  and  Duffield  channc'ry  silt  loams  8 

30 

IIIe-1 

70 

- 

115 

Fl 

82 

2 

118 

to  15  percent  slopes,  moderately  eroded. 

FwC3 

Frankstown  and  Duffield  channery  silt  loanis  8 

30 

IVe-1 

7.5 

Fl 

82 

2 

118 

to  15  percent  slopes,  se\'erelv  eroded. 

FwD2 

Frankstown  and  Duffield  channery  silt  loams,  15 

30 

IVe-1 

75 

Fl 

82 

3 

119 

to  25  j)ercent  slopes,  moderately  eroded. 

FwD3 

T^^rfi  n  k"«^t  n  WTT  n  ti  fl  T^i  i  ffiel  H  nliitmerv  Qilt  ^c^^  tit  s  1 

30 

VIe-1 

78 

Fl 

82 

3 

119 

to  25  percent  slopes,  severely  eroded. 

FwE2 

Frankstown  and  Duffield  channery  silt  loams,  25 

30 

VIe-1 

78 

Fl 

82 

3 

119 

to  45  percent  slopes,  moderately  eroded. 

FwE3 

Frankstown  and  Duffield  channery  silt  loams,  25 

30 

VIIe-1 

79 

Fl 

82 

3 

119 

to  45  percent  slopes,  severely  erodc^d. 

117 

FyB2 

Frederick  cherty  silt  loam,  0  to  8  percent  slopes. 

31 

IIe-26 

68 

5 

115 

Fl 

82 

1 

moderately  eroded. 

FyC2 

Frederick  cherty  silt  loam,  8  to  15  percent  slopes, 

31 

IIIe-26 

72 

5 

115 

Fl 

82 

2 

118 

moderately  eroded. 


WASHINGTON  COUNTY,  MARYLAND 


133 


GUIDE  TO  MAPPING  UNITS— (  ontimud 


Woodland 

Sewage 

Map 

CapabiliUj 

Irriyalion 

suilahilily 

disposal 

symbol 

MapiiiiKj  unit 

Pane 

unit 

Page 

soil  group 

Page 

group 

I 'age 

group 

Page 

FyC3 

Frederick  chert y  silt  loam,  8  to  15  percciiit  slopes, 

31 

IVe-26 

76 





Fl 

82 

2 

118 

severely  eroded. 

FyD2 

Frederick  chert  y  sill  loam,  15  to  25  percent  slopes, 

31 

IVe-2f) 

7G 





Fl 

82 

3 

119 

moderately  eiodcfl. 

FyD3 

Frederick  chert  y  silt  loam,  15  to  25  percent  slopes. 

31 

VIe-1 

78 





Fl 

82 

3 

119 

severely  eroded. 

FyE2 

Frederick  chert  y  silt  loam,  25  to  45  percent  slopes. 

31 

VIe-1 

78 



Fl 

82 

3 

1  19 

moderately  eroded. 

HaA 

riagerstowa  clay  loam,  0  to  8  percent  slopes  

31 

IIs-1 

69 

7 

117 

Fl 

82 

1 

117 

HaB2 

Hagerstown  clay  loam,  0  to  8  ])ercent  slopes  mod- 

32 

He- 19 

68 

7 

117 

Fl 

82 

1 

117 

erately  erodeti. 

HaB3 

Hagerstown  clay  loam,  3  to  S  percent  slopes,  se- 

32 

IIIe-30 

73 





Fl 

82 

1 

117 

verely  eroded. 

HaC2 

Hagerstown  clay  loam,  8  to  15  percent  slopes, 

32 

HIe-30 

73 

7 

117 

Fl 

82 

2 

118 

moderately  eroded. 

HaC3 

Hagerstown  clay  loam,  8  to  15  percent  slopes. 

32 

IVe-1 

75 





Fl 

82 

2 

1 18 

severely  eroded. 

HaD2 

Hagerstown  clay  loam,  15  to  25  percent  slopes, 

32 

IVe-1 

75 





Fl 

82 

3 

119 

moderately  eroded. 

HaD3 

Hagerstown  clay  loam,  15  to  25  percent  slopes, 

32 

VIe-1 

78 





Fl 

82 

3 

119 

severely  eroded. 

HbD2 

Hagerstown  extremely  rocky  silt  loam,  0  to  25 

32 

VIIs-1 

80 





Fl 

82 

3 

119 

percent  slopes,  moderately  eroded. 

HcD2 

Hagerstown  extremely  rocky  silty  clay  loam,  0  to 

32 

VIIs-1 

80 





Fl 

82 

3 

119 

25  percent  slopes,  moderately  eroded. 

VIIs-1 

119 

HdE 

Hagerstown  extremely  rocky  soils,  25  to  45  per- 

32 

80 





F2 

83 

3 

cent  slopes. 

HeA 

Hagerstown  silt  loam,  0  to  3  percent  slopes 

32 

I-l 

64 

5 

115 

Fl 

82 

1 

117 

HeB2 

Hagerstown  silt  loam,  0  to  8  percent  slopes,  mod- 

32 

IIe-1 

65 

5 

115 

Fl 

82 

1 

117 

erately  eroded. 

HeC2 

Hagerstown  silt  loam,  8  to  15  percent  slopes. 

32 

IIIe-1 

70 

5 

115 

Fl 

82 

2 

118 

moderately  eroded. 

HeD2 

Hagerstown  silt  loam,  15  to  25  percent  slopes. 

32 

IVe-1 

75 





Fl 

82 

3 

119 

moderately  eroded. 

HfA 

Hagerstown  siltj'  clay  loam,  0  to  3  percent 

32 

I-l 

64 

7 

117 

Fl 

82 

1 

117 

slopes. 

HfB2 

Hagerstown  silty  clay  loam,  0  to  8  percent  slopes, 

32 

IIe-1 

65 

7 

117 

Fl 

82 

1 

117 

moderately  eroded. 

HfC2 

Hagerstown  silty  clay  loam,  8  to   15  percent 

32 

IIIe-1 

70 

7 

117 

Fl 

82 

2 

118 

slopes,  moderately  eroded. 

HfD2 

Hagerstown  silty  clay  loam,  15  to  25  percent 

32 

IVe-1 

75 

Fl 

82 

3 

119 

slopes,  moderately  eroded. 

HgC2 

Hagerstown  very  rocky  silt  loam,  3  to  15  percent 

32 

VIs-1 

79 

Fl 

82 

2 

118 

slopes,  moderately  eroded. 

HgE2 

Hagerstown  very  rockj^  silt  loam,  15  to  45  per- 

32 

VIs-1 

79 



Fl 

82 

3 

119 

cent  slopes,  moderately  eroded. 

HhC2 

Hagerstown  very  rocky  silty  clay  loam,  3  to  15 

33 

VIs-1 

79 

Fl 

82 

2 

118 

percent  slopes,  moderately  eroded. 

HhC3 

Hagerstown  very  rocky  silty  clay  loam,  8  to  15 

33 

VIIs-1 

80 

Fl 

82 

2 

118 

percent  slopes,  severely  eroded. 

HhE2 

Hagerstown  very  rocky  silty  clay  loam,  15  to  45 

33 

VIs-1 

79 

Fl 

82 

3 

119 

percent  slopes,  moderately  eroded. 

HkF 

Hagerstown  very  rocky  soils,  45  to  55  percent 

33 

VIIs-1 

80 

F2 

83 

3 

119 

slopes. 

HIA 

Hagerstown,  Corydon,  and  Duffield  very  rocky 

33 

Vs-1 

77 

Fl 

82 

1 

117 

silt  loams,  0  to  3  percent  slopes. 

HmE2 

Hagerstown  and  Duffield  silt  loams,  25  to  45  per- 

33 

VIe-1 

78 

Fl 

82 

3 

119 

cent  slopes,  modcratel.y  eroded. 

HnB2 

Hazel  channery  silt  loam,  0  to  10  percent  slopes. 

33 

IIIs-2 

74 

4 

114 

F3 

83 

5 

120 

moderately  eroded. 

HnC2 

Hazel  channery  silt  loam,  10  to  20  percent  slopes. 

33 

IVe-32 

77 

F3 

83 

6 

120 

moderately  eroded. 

HnC3 

Hazel  channery  silt  loam,  10  to  20  percent  slopes. 

33 

VIe-3 

78 

F3 

83 

6 

120 

severely  eroded. 

HnD2 

Hazel  channery  silt  loam,  20  to  30  percent  slopes. 

33 

VIe-3 

78 

F3 

83 

6 

120 

moderately  eroded. 

HnD3 

Hazel  channery  silt  loam,  20  to  30  percent  slopes. 

33 

VIIe-3 

80 





F3 

83 

6 

120 

severely  eroded. 

HnE 

Hazel  channery  silt  loam,  30  to  45  percent  slopes. 

34 

VIIe-3 

80 

F3 

83 

6 

120 

HoB 

Highfield  gravelly  loam,  0  to  5  percent  slopes  

34 

1-4 

64 

5 

"lis 

Fl 

82 

1 

117 

HoB2 

Highfield  gravelly  loam,  5  to  10  percent  slopes. 

34 

IIe-4 

66 

5 

115 

Fl 

82 

1 

117 

moderately  eroded. 

HoC2 

Highfield  gravelly  loam,  10  to  20  percent  slopes, 

34 

IIIe-4 

70 

5 

115 

Fl 

82 

2 

118 

moderately  eroded. 

HoE2 

Highfield  gravelly  loam,  20  to  35  percent  slopes. 

34 

IVe-3 

75 

Fl 

82 

3 

119 

moderately  eroded. 


134 


SOIL  SURVEY  SERIES   1959,  NO.  17 


GUIDE  TO  MAPPING  UNITS— (ontiiuiod 


11  oodld 

Map 

i^(ip(il)il  uy 

irvtgdiion 

HUlt(l})llltlj 

disposal 

symbol 

I\J Oppifl^  lifl'tt 

unit 

r(l(J€ 

soil  (jroup 

iClQC 

yroup 

fagc: 

(/roup 

/  a(j& 

HdB 

llighficld  very  slony  loam,  0  to  5  percent  slopes, _ 

34 

Vs-2 

77 





Fl 

82 

1 

117 

HpD 

llighfield  very  stony  loam,   5  to   30  percent 

34 

VIs-2 

79 





Fl 

82 

3 

]  19 

slopes. 

HpE 

Highfield  very  stonj'  loam,  30  to  4,5  i)ercent 

34 

VILs-2 

80 





Fl 

82 

3 

119 

slopes. 

1 17 

HrA 

1  lolston  gravelly  loam,  0  to  3  percent  slopes  

35 

1-4 

64 

5 

115 

Fl 

82 

1 

HrB2 

llolston  gravelly  loam,  0  to  8  percent  slopes, 

35 

IIe-4 

66 

5 

115 

Fl 

82 

1 

117 

moderately  eroded. 

HrC2 

llolston  gravelly  loam,  8  to  15  percent  slopes. 

35 

IIIe-4 

70 

5 

115 

Fl 

82 

2 

lis 

moderately  eroded. 

HrD2 

llolston  gravelly  loam,  15  to  25  percent  slopes. 

35 

IVe-3 

75 





Fl 

82 

3 

1 1 9 

moderately  eroded. 

HrD3 

llolston  gravelly  loam,  8  to  25  i)erceiit  slopes, 

35 

VIe-2 

78 





Fl 

82 

3 

119 

s(-verely  eroded. 

HrE2 

llolston  gravelly  loam,  25  to  45  i)ercent  .slopes. 

35 

VIe-2 

78 





Fl 

82 

3 

119 

moderately  eroded. 

HsB 

Holston  gravelly  sandy  loam,  3  to  8  percent 

35 

IIs-2 

69 

1 

1  14 

Fl 

82 

1 

]  1  7 

slopes. 

HsC2 

llolston  gravelly  sand.y  loam,  3  to  15  i)ercent 

35 

IIIe-5 

71 

1 

114 

Fl 

82 

1 

117 

slopes,  moderately  eroded. 

HsC3 

llolston  gravelly  sandy  loam,  8  to  15  percent 

35 

IVe-5 

76 





Fl 

82 

2 

118 

sloix's,  severely  eroded. 

HtA 

35 

1-4 

64 

5 

115 

Fl 

82 

1 

117 

HtB2 

llolston  silt  loam,  3  to  8  i)ercent  slopes,  mod- 

35 

IIe-4 

66 

5 

1 15 

Fl 

82 

1 

117 

erately  eroded. 

HtC2 

llolston  silt  loam,  8  to  15  i)ercent  slopes,  mod- 

35 

IIIe-4 

70 

5 

115 

Fl 

82 

2 

118 

erately  eroded. 

Hu 

Huntington  fine  sandv  loam  . 

36 

1-6 

65 

1 

1 14 

Fl 

82 

8 

121 

Hv 

JIuiitington  gravellv  loam  .  

36 

1-6 

65 

3 

114 

Fl 

82 

8 

121 

Hw 

Huntington  silt  loam  .  .  _ 

36 

1-6 

65 

3 

114 

Fl 

82 

8 

121 

Hx 

Huntington  silt  loam,  local  alluvium  

36 

1-6 

65 

3 

114 

Fl 

82 

8 

121 

La  A 

Laidig  gravellv  loam,  0  to  3  percent  slopes 

37 

1-4 

64 

5 

115 

Fl 

82 

1 

117 

LaB2 

I^aidig  gravelly  loam,  3  to  8  percent  slopes,  mod- 

37 

IIe-4 

66 

5 

115 

P'l 

82 

1 

1 1 7 

erately  eroded. 

118 

LaC2 

Laidig  gravelly  loam,  8  to  15  percent  slopes. 

37 

IIIe-4 

70 

5 

115 

Fl 

82 

2 

moderately  eroded. 

LaD2 

Laidig  gravelly  loam,  15  to  25  percent  slopes, 

37 

IVe-3 

75 





Fl 

82 

3 

1 1 9 

moderately  eroded. 

LbD 

Laidig  very  stony  loam,  8  to  25  percent  slopes.  _ 

37 

VIs-2 

79 





Fl 

82 

3 

119 

LbE2 

Laidig  very  ston\'  loam,  15  to  45  percent  slopes, 

37 

VII.s-2 

80 





Fl 

82 

3 

119 

moderately  eroded. 

120 

LcB2 

Landisburg  cherty  silt  loam,  3  to  8  percent  slopes. 

37 

He- 13 

67 

2 

114 

F2 

83 

7 

moderately  eroded. 

120 

LcD2 

Landisburg  cherty  silt  loam,  8  to  25  percent 

37 

IIIe-13 

72 

2 

114 

F2 

83 

7 

slopes,  moderately  eroded. 

82 

121 

Le 

Largent  silt  loam         .                            _     _  - 

38 

II\v-7 

69 

3 

114 

Fl 

8 

LgA 

Lead  vale  gravelly  silt  loam,  0  to  3  percent  slopes. 

38 

IIw-l 

68 

2 

114 

F2 

83 

7 

120 

LgB2 

Leadvale  gravelly  silt  loam,  3  to  8  percent  slopes, 

38 

lie- 13 

67 

2 

114 

F2 

83 

7 

120 

moderately  eroded. 

Lm 

Lindside  silt  loam      .    .  _ 

40 

II\v-7 

69 

3 

114 

Fl 

82 

8 

121 

Ln 

Lindside  silt  loam,  local  alluvium 

40 

II\v-7 

69 

3 

114 

Fl 

82 

8 

121 

LoB2 

Litz  channery  loam,  3  to  10  percent  slopes,  mod- 

40 

IIe-11 

67 

4 

114 

F3 

83 

4 

119 

erately  eroded. 

120 

LoC2 

Litz  channery  loam,  10  to  20  percent  slopes,  mod- 

40 

IlIe-31 

73 

4 

114 

F3 

83 

5 

erately  eroded. 

120 

LoC3 

Litz  channery  loam,  10  to  20  percent  slopes,  se- 

40 

IVe-31 

77 





F3 

83 

5 

verely  eroded. 

119 

LsB 

Litz  shalv  loam,  0  to  10  percent  slopes 

40 

IIIe-31 

73 

4 

114 

F3 

83 

4 

LsB2 

Litz  shaly  loam,  3  to  10  percent  slopes,  moder- 

40 

IIIe-31 

73 

4 

114 

F3 

83 

4 

119 

ately  eroded. 

120 

LsC2 

Litz  siialy  loam,  10  to  20  percent  slopes,  moder- 

40 

IVe-31 

77 

4 

114 

F3 

83 

5 

ately  eroded. 

120 

LsC3 

Litz  shaly  loam,  10  to  20  percent  slopes,  severely 

40 

VIe-3 

78 





F3 

83 

5 

eroded. 

120 

LsD2 

Litz  shaly  loam,  20  to  30  percent  slopes,  moder- 

40 

VIe-3 

78 





F3 

83 

6 

ately  eroded. 

120 

LsD3 

Litz  shaly  loam,  20  to  30  percent  slopes,  severely 

40 

VIIe-3 

80 





F3 

83 

6 

eroded. 

1  90 

LsLz 

Litz  shaly  loam,  30  to  45  percent  slopes,  moder- 

40 

\  ^  T  T  ,^  O 

V  lie— 3 

80 

r  6 

QQ 
OO 

D 

ately  eroded. 

120 

LsE3 

Litz  shaly  loam,  30  to  45  percent  slopes,  severely 

40 

VIIe-3 

80 

F3 

83 

6 

eroded. 

LsF 

Litz  shaly  loam,  45  to  60  percent  slopes      .  . . 

41 

VIIe-3 

80 

F3 

83 

6 

120 

LtB 

Litz-Teas  channery  silt  loams,  0  to  8  percent 

41 

IIe-11 

67 

4 

'114 

F3 

83 

4 

119 

slopes. 

120 

LtC2 

Litz-Teas  channery  silt  loams,  3  to  15  percent 

41 

IIIe-31 

73 

F3 

83 

5 

slopes,  moderately  eroded. 


WASHINGTON  COUNTY,  MARYLAND 


135 


GlIIDK  TO  MAP 


Map 

.■ii/nibol  MujijiiiKj  unit  I'lii/c 

LtC3  Litz-Tciis  chainu'ry  silt  loams,  S  lo  I')  pciccnl  41 

sl()])('s,  severely  eroded. 
LtD2         Lit /.-Tens  chamiery  silt  loams,  15  to  25  percent  -II 

slopes,  moderately  eroded. 
LtD3  Lit /.-Teas  chaiinery  silt  loams,  15  to  25  pereeiil  H 

slopes,  severely  eroded. 
LtE2  Litz-Teas  channery  silt  loams,  25  to  15  pereeni  II 

slop(^s,  moderately  eroded. 

Me  Mel\  ill  silt  loam    II 

MgB2        Mononsahela  K'  avc^lly  loam,  8  to  8  percent  slopes,  42 

moderately  eroded. 
MgC2        Moiioiigahela  Rra\-elly  loam,   8  to    15   percent  42 

slopes,  moderately  eroded. 

MhA         Monongahela  silt  loam,  0  to  3  percent  slopes   42 

MhB2       Monongahela  silt  loam,  3  to  8  percent  slopes,  42 

moderately  eroded. 
MhC2        Monongahela  silt  loam,  8  to  15  percent  slopes,  42 

moderately  eroded. 
MhD2       Monongahela  silt  loam,  15  to  25  jiercent  slopes,  42 

moderately  eroded. 
MmB2       Montevallo  shaly  loam,  0  to  10  percent  slopes,  42 

moderately  eroded. 
MmC2       Montevallo  shaly  loam,  10  to  20  percent  slopes,  42 

moderately  eroded. 
MmC3       Montevallo  "shaly  loam.  10  to  20  percent  slopes,  43 

severely  eroded. 

MtnD2      Montevailo  shaly  loam.  20  to  30  i^ercent  slopes,  43 

moderately  eroded. 
MmD3       Montevallo  shaly  loam,  20  to  30  jiercent  slopes,  43 

severely  eroded. 

MoA         Murrill  gravelly  loam.  0  to  3  percent  slopes   43 

MoB2        Mtn-rill  gravelly  loam,  0  to  8  percent  slopes,  43 

moderately  eroded. 
MoC2        Murrill  gravelly  loam,  8  to  15  percent  slopes,  43 

moderately  eroded. 
MoD2       Murrill  gravelly  loam,  15  to  25  percent  slopes,  44 

moderately  eroded. 
MoD3       Murrill  gravelly  loam,  8  to  25  percent  slopes,  43 

severely  eroded. 

MoE2        Murrill  gravelly  loam,  25  to  45  percent  slopes,  44 

moderately  eroded. 
M  rB  Murrill  gravelly  sandy  loam,  0  to  8  percent  slopes  44 

MrC2        Murrill  gravelly  sandy  loam,  3  to  15  percent  44 

slopes,  moderately  eroded. 
MrC3        Murrill  gravelly  sandy  loam,  8  to  15  percent  44 

slopes,  severely  eroded. 
MrD2        Murrill  gravelly  sandy  loam,  15  to  25  percent  44 

slopes,  moderately  eroded. 
MrD3        Murrill  gravelly  sandy  loam,  15  to  25  percent  44 

slopes,  severely  eroded. 

MsA         Murrill  silt  loam,  0  to  3  percent  slopes   44 

MsB2        Murrill  silt  loam,  0  to  8  percent  slopes,  moderately  44 

eroded. 

MsC2        Murrill  silt  loam,  8  to  15  percent  slopes,  moder-  44 
ately  eroded. 

M  vA  Myersville  channery  loam,  0  to  3  percent  slopes. .  45 
MvB2        Myersville  channery  loam,  3  to  10  percent  slopes,  45 

moderately  eroded. 
MvC2        Myersville  channery  loam,   10  to  20  percent  45 

slopes,  moderately  eroded. 
MvD2       Myersville  channery  loam,   20  to  30  percent  45 

slopes,  moderately  eroded. 
MvE2        Myersville   channery  loam,   30  to  45  percent  45 

slopes,  moderately  eroded. 
MwB3       Myersville  channery  silt  loam,  3  to  10  percent  45 

slopes,  severely  eroded. 
MwD3      Myersville  channery  silt  loam,  10  to  30  percent  45 

slopes,  severely  eroded. 

MxA         Myersville  silt  loam,  0  to  3  percent  slopes   45 

MxB2        Myersville  silt  loam,  3  to  10  percent  slopes,  45 

moderately  eroded. 
MxC2        Myersville  silt  loam,  10  to  20  percent  slopes,  45 

moderately  eroded. 
MyE2        Myersville  very  stony  loam,  3  to  30  percent  45 

slopes,  moderately  eroded. 
MyF2        Myersville  very  stony  loam,  30  to  55  percent  45 

slopes,  eroded. 


M(;  UNITS  Continued 

Wooillan'l  Sewage 
('cipahilitii  Irrif/alion  xiiitiiliilili/  dinpoHul 


unit 

■soil  group 

Page 

group 

Huge 

group 

I'age 

IVe-31 

77 

4 

114 

F3 

83 

5 

120 

IVe-3I 

77 



I>'3 

83 

fi 

120 

VIe-3 

78 

I'3 

83 

6 

1  20 

VI(-3 

78 

F3 

83 

6 

r.M) 

1 1 1  \v-2 

74 

Fl 

82 

8 

121 

lie- 13 

67 

2 

'  1  i  1 

I'2 

83 

7 

120 

I  He- 13 

72 

2 

1 14 

F2 

83 

( 

120 

IIw-l 

68 

2 

114 

F2 

83 

7 

120 

lie- 13 

67 

2 

114 

F2 

83 

7 

120 

IIIe-13 

72 

2 

114 

F2 

83 

7 

120 

IVe-9 

76 

F2 

83 

7 

120 

1 1  if-.— Z 

7  1 

A 

1  1  1 

i  1  -1 

r  o 

1  1  u 

IVe-32 

77 





F3 

83 

5 

120 

Vle-3 

78 





F3 

83 

6 

120 

VIe-3 

78 





F3 

83 

6 

120 

VIIe-3 

80 





F3 

83 

6 

120 

1-4 

64 

5 

115 

Fl 

82 

1 

1 17 

T  J  ^  A 

lie— 'I 

DO 

0 

i  i  0 

r  i 

oZ 

1 
i 

1  1  7 
1  1  i 

IIIe-4 

70 

5 

115 

Fl 

82 

2 

118 

IVe-3 

75 





Fl 

82 

3 

119 

VIe-2 

78 





Fl 

82 

3 

119 

VIe-2 

78 





Fl 

82 

3 

119 

IIs-2 

69 

1 

114 

Fl 

82 

1 

117 

IIIe-5 

71 

1 

114 

Fl 

82 

1 

117 

IVe-5 

76 





Fl 

82 

2 

118 

IVe-5 

76 

Fl 

82 

3 

119 

VIe-2 

78 

Fl 

82 

3 

119 

1-4 

64 

5 

115 

Fl 

82 

1 

117 

IIe-4 

66 

5 

115 

Fl 

82 

1 

117 

IIIe-4 

70 

5 

115 

Fl 

82 

2 

1 18 

1-4 

64 

5 

115 

Fl 

82 

1 

117 

IIe-4 

66 

5 

115 

Fl 

82 

1 

117 

T  T  T,,  4 

0 

IIP; 
1  lo 

r  i 

oZ 

O 

Z 

1  1  Q 
1  1  O 

IVe-3 

75 





Fl 

82 

3 

119 

VIe-2 

78 





Fl 

82 

3 

119 

IIIe-44 

73 





Fl 

82 

1 

117 

VIe-2 

78 

Fl 

82 

3 

119 

1-4 

64 

5 

115 

Fl 

82 

1 

117 

IIe-4 

66 

5 

115 

Fl 

82 

1 

117 

IIIe-4 

70 

5 

115 

Fl 

82 

2 

118 

VIs-2 

79 

Fl 

82 

3 

119 

VIIs-2 

80 

Fl 

82 

3 

119 

136 


SOIL  SURVEY  SERIES   1959,  NO.  17 


GUIDE  TO  MAPPING  UNITS— Continued 


11''" fi/ifil/l  tif} 

wnifr/ 

Map 

1  //  Ti/i  f  >'/    /  u 

^—'IC  fJ\.l'\/  I'll  I  L  If 

J  v  T )  nnt }  rti) 

J  1  1  HIULL  Li/  1  L 

Vi/ll/llllllfll 
•  ^  11- 1  L'  1  < '  1  I  1  I  '  f 

if  1  vTifi  vfi  I 
fJUoUL 

Q  IS  )i)  hnl 

O  (/  It  I  L/l/t 

]\  fnTtTt7  ti n  iiii'it. 

(.1  IV  11/ 

1  uyv 

oVlfc    If  1  U  U.  ff 

if  1  U  III  IJ 

Paqc 

(JTO }(  J) 

Pai/e 

Pg 

Philo  gravelly  sandy  loam..  .  .   . 

45 

IIw-7 

69 

1 

114 

Fl 

82 

8 

121 

Ph 

I'hilo  silt  loam.  _               .  .  

40 

T  T   — r 

1  lw-7 

09 

3 

114 

Fl 

82 

8 

121 

Pn 

Pope  fine  sandv  loam..  .  ... 

40 

1-0 

Oo 

1 

1 14 

1 

b  1 

8 

1 2 1 

Po 

Po])e  sravellv  loam  .  .  . 

4() 

T  /* 

1-0 

05 

3 

1 14 

Fl 

82 

8 

1 2 1 

Pp 

Pope  gravelly  sandy  loam  .      .  . 

40 

IIs-2 

69 

1 

111 

Fl 

82 

8 

121 

rs 

Pope  silt  loam              .               .  .   

A  t\. 

4() 

T  O 
1-0 

DO 

3 

114 

r  1 

OO 

8 

i  21 

Pt 

Pojje  stony  gravelly  loam 

40 

Vs-z 

IT 





b  1 

oo 

82 

8 

121 

Hk 

lloclcy  eroded  land                                    _  .  

40 

V lis-1 

80 

T?A 

oo 

so 

3 

1 19 

RoB2 

Kolirer.sville  silty  elay  loam,  0  to  8  jiercent  slopes, 
moderately  eroded. 

47 

IIIw-1 

74 



:::: 

Fl 

82 

7 

120 

Sr 

Stony  rolling  land  .  .  .  

•17 

VIIs-2 

80 



— 

F4 

83 

3 

119 

OS 

1 T 
4  / 

\ '  T  T  T  ^-  1 

r  t 

OO 

•» 

o 

1  ly 

T ^0 

1  aLZ 

Talladega  gravelly  silt  loam,  thick  solum  variant, 
0  to  20  percent  slopes,  moderately  eroded. 

1  7 
■i  / 

TIT-,  in 
1 1 Ic— lU 

1 1 

/ 1 

4 

114 

r  1 

oZ 

2 

1 1 8 

TaC3 

Talladega  gravelly  silt  loam,  thick  solum  variant, 

48 

I\  e-10 

1 0 

.... 

b  1 

82 

3 

1 1 !) 

10  to  20  percent  slo|)es,  severely  eroded. 
Talladega  gravelly  silt  loam,  thick  solum  variant, 
20  to  30  {)ercent  slo[)es. 

TdD 

4:8 

I\^e-10 

76 





Jf  1 

OO 

82 

3 

1 1 9 

TaE2 

Talladega  gravelly  silt  loam,  tliick  solum  variant, 
20  to  45  percent  slopes,  moderately  eroded. 

48 

VIe-3 

78 





Fl 

82 

3 

119 

Te 

Terrace  escarpments    .  

A  Q 

4o 

TTT„  a 

/  1 

F  1 

aZ 

8 

1  O  1 

1  zl 

TU  DO 

Thurmont  gravelly  loam,  3  to  8  percent  slopes, 
moderately  erodt^d. 

1 

4.) 

1  le— 4 

00 

r 
0 

110 

"Pi 

r  1 

oo 
oZ 

1 

11/ 

ThC2 

Thurmont  gravelly  loam,  8  to  15  percent  slopes, 
moderately  eroded. 

I'J 

llle-4 

70 

5 

115 

Fl 

82 

2 

118 

TrA 

Trego  gravelly  silt  loam,  0  to  3  })ercent  slopes  

I'.l 

lIw-1 

68 

2 

114 

F2 

83 

7 

120 

TrC2 

Trego  gravelly  silt  loam,  3  to  15  percent  slopes, 
moderately  eroded. 

■10 

llle-lo 

TO 

Z 

1 14 

IT**! 

r  2 

83 

7 

1  Zu 

TyB 

Tyler  silt  loam,  0  to  8  ])ercent  slopes..  _ 

lllw-1 

/  4 

. 

T?0 

r  z 

o3 

7 

1  on 

Wa 

Warners  loam,  0  to  8  percent  slopes.. 

50 

IIw-7 

69 

'il4 

Fl 

82 

8 

121 

WbA 

Waynesboro  gra\  elly  loam,  0  to  3  percent  slopes. 

1 

f)  I 

T  1 

1-4 

04 

5 

1  1  0 

r  1 

oo 
oZ 

1 

117 

117 

WbB2 

Waynesboro  gravelly  loani,  0  to  8  i)ercent  slo])es, 
moderately  (M'oded. 

51 

IIe-4 

66 

5 

115 

Fl 

82 

1 

117 

WbC2 

Waynesboro  gravelly  loam,  8  to  15  percent  slopes, 
moderately  eroded. 

51 

IIIe-4 

70 

5 

115 

Fl 

82 

2 

118 

Waynesboro  gravell}'  loam,  3  to  15  percent  slopes, 
severely  eroded. 

O  1 

/  O 





Jf  i 

OZ 

TIC 
1  lo 

WbD2 

Waynesboro  gravelly  loam,   15  to  25  percent 
slopes,  moderatel\'  eroded. 

51 

IVe-3 

75 





Fl 

82 

3 

119 

WbD3 

Waynesboro  gravelly  loam,   15  to  25  percent 
slopes,  severely  eroded. 

51 

VIe-2 

78 





Fl 

82 

3 

119 

WbE2 

Waynesboro  gravelly  loam,  25  to  45  percent 
slopes,  moderately  eroded. 

Ol 

V  le— z 

7ft 





r  I 

oZ 

O 
O 

1  1.7 

WgB 

Waynesboro  gravelly  sandy  loam,  0  to  8  percent 

51 

ils-z 

69 

1 

1  1  4 

X?  1 

r  1 

QO 

oZ 

1 
1 

117 
11/ 

slopes. 

TTT„  r 

llle— 0 

CO 
oZ 

Waynesboro  gravelly  sandy  loam,  3  to  15  percent 
slopes,  moderately  eroded. 

oi 

/  1 

1 

1  1  1 

114 

r  1 

1 

117 
1  1  t 

WgC3 

Waynesboro  gravelly  sandy  loam,  8  to  15  percent 
slopes,  severely  eroded. 

51 

1\  e— 5 

/  0 

r  1 

oo 
oZ 

o 

1  1  O 
1  lo 

WgD2 

Waynesboro  gravelly  sandy  loam,  15  to  25  per- 

51 

1 V  e-5 

/6 

r  1 

oo 
oZ 

Q 
O 

1  1  n 

1  ly 

cent  slopes,  moderately  eroded. 

Wn 

Wehadkee  silt  loam                ...  ..... 

oz 

TTTxir  1 

lllW— 1 

/  4 

- 

Ti"1 
r  1 

oZ 

Q 

O 

1  91 

WmB2 

Westmoreland  channery  silt  loam,  3  to  10  per- 
cent slopes,  moderately  eroded. 

52 

IIe-1 

65 

115 

Fl 

82 

1 

117 

WmC2 

Westmoreland  channery  silt  loam,  10  to  20  per- 
cent slopes,  moderately  eroded. 

52 

IIIe-1 

70 

5 

115 

Fl 

82 

2 

118 

WmC3 

Westmoreland  channery  silt  loam,  3  to  20  per- 
cent slopes,  severely  eroded. 

52 

IVe-1 

75 

Fl 

82 

2 

118 

WmD2 

Westmoreland  channery  silt  loam,  20  to  30  per- 
cent slopes,  moderately  eroded. 

52 

IVe-1 

75 

Fl 

82 

3 

119 

WmD3 

Westmoreland  channery  silt  loam,  20  to  30  per- 
cent slopes,  severely  eroded. 

52 

VIe-1 

o 

78 

Fl 

82 

3 

119 

WORKS  AND  STRUCTURES 

Highways  and  roads 


Dua'  .  . 

Good  motor 
Poor  motor 
Trail 

Highway  markers 

National  Interstate 

U.S  

Stale 
Railroads 

Single  track 

Multiple  track 

Abandoned 
Bridges  and  crossings 

Road 

Trail,  foot 

Railroad 

Ferries 

Ford 

Grade 

R,  R,  over 

R.  R.  under 

Tunnel 
Buildings 

School   

Church   

Station 
Mines  and  Quarnes 
Mine  dump 
Pits,  gravel  or  other 
Power  lines 
Pipe  lines 
Cemeteries 
Dams 

Levees   

Tanks   

Oil  wells 

Canal  locks  {pomt  upstream) 


o 

o 

o 


WASHINGTON  COUNTY,  MARYLAND 
CONVENTIONAL  SIGNS 


BOUNDARIES 


National  or  state 
County 

Township,  U.  S. 
Section  line,  corner 
Reservation 
Land  grant 


Streams 
Perennial 

Intermittent,  unclass. 
Canals  and  ditches 
Lakes  and  ponds 

Perennial 

Intermittent 
Wells 
Springs 
Mafsh 
Wet  spot 
Canal  Aqueduct 


^  f 


Escarpments 

Bedrock 

Other 
Prominent  peaks 

Depressions 

Crossabie  with  tillage 
implements  

Not  crossabie  with  tillage 
implements   

Contains  water  most  of 
the  time   


SOIL  SURVEY  DATA 


Soil  boundary 
and  symbol 
Gravel 
Stones 

Rock  outcrops 
Chert  fragments 
Clay  spot 
Sand  spot 

Gumbo  or  scabby  spot 
Made  land 

Severely  eroded  spot 
Blowout,  wind  erosion 
Gullies 


WELL  DRAINED,  STONY  AND  VERY  STONY  SOILS 

Dekalb-Leetonia  Edgemont-Laidig  association: 
Very  stony,  mountainous  soils 


Dekalb-Highfield  association 
Vety  steep,  stony  soils 


Highfield-Fauquier  association: 
Deep,  stony  soils 

WELL  TO  EXCESSIVELY  DRAINED,  SHALLOW, 
MEDIUM  TEXTURED  SOILS 

Herks-Montevallo  association: 
Soils  on  shale 

Hazel-Chandler  association: 
Shallow  soils  on  schist 


T.illadega  association: 
Moderately  deep  soils  on  schist 


itz  Teas  association: 
Shallow,  steep  soils  on  shale 


Calvin- Berks- Litz-Montevallo  association: 
Shallow  soils  on  shale,  limestone,  or  sandstone 


^  VIRGINIA 


U.  S  DEPARTMENT  OF  AGRICULTURE 
SOIL  CONSERVATION  SERVICE 


MARYLAND  AGRICULTURAL  E:XPERIMENT  STATION 


SOIL  LEGEND 


The  hrst  caDital  teller  is  the  mit.at  one  ot  the  soil  name.  A  second 
caoital  letlef,  A,  B.  C,  D.  E.  Of  F.  shows  the  slope.   Symbols  wilfiout  a 
siooe  lelle'  afe  those  of  nearly  level  sols,  sucti  as  Huni.ngton  silt  loam, 
or  of  land  types,  such  as  Rocky  eroded  land,  that  have  a  considerable  range 
o'  slope.  A  frnal  number,  2  0'  3,  shows  that  the  soil  is  eroded. 


BbA 

e>B2 

B»C? 
B^C3 
BcB2 
BcC2 
BCC3 
BcD2 
BflB 
BeB2 
BcC? 
BfD2 
BhB2 
BhC? 
BkC3 
BkD2 
BoE3 
BoF 


BuD? 

C»82 

CeB2 

CcC2 

CcO 

CeD2 

CcE 

CcF 

CmB2 

CmC2 

CmC3 

CmD 

CmE 

CnB2 

CnC2 

CnC3 

Cn02 

CnF2 

CoB? 

CoC2 

CoD2 

CoE3 

CoF 

CfB  ' 


CwA 

CwB2 

CwC2 

C.C 

CvE2 

OoD 

DeE 

DeF 

DkO 

DhE 

DmA 

OmB2 

DmC2 

Drt>02 

Dm03 


Ashton  fine  sandy  loam.  0  lo  S  percent  slopes 
Atkins  silt  loam 

Benevola  clay  loam,  0  to  3  percent  slopes 
Benevoli  clay  loam,  3  to  8  prrceni  slopes,  moderately  eroded 
Benevola  clay  loam,  8  to  lb  percent  slopes,  moderately  eroded 
Benevola  Cay  loam,  6  to  15  percent  slopes,  severely  eroded 
Berks  channery  loai 
Berks  channery  loai 
Berks  channery  loai 
Berks  channery  loai 
Berks  shsly  sill  loai 
Berks  shaly  Sill  loai 
Berk-i  shaly  sitl  loar 


dgei,  0  10  10  percent  slopes,  moderately  eroded 
ridges.  10  to  20  pefcenl  slopes,  moderately  eroded 
fidgei,  10  to  20  percent  slopes,  severely  eroded 
ridges,  20  to  30  percent  slopes,  moderately  eroded 
0  10  8  percent  slopes 
3  to  8  percent  slopes,  moderately  eroded 
8  to  15  percent  slopes,  moderately  eroded 
15  lo  25  percent  slopes,  moderately  eroded 
Berks  sill  loam,  ridges.  0  to  10  percent  slopes,  moderately  eroded 
Berks  sill  loam,  r.dges,  10  to  20  percent  slopes,  moderately  eroded 
Berks  sill  loam,  ndges.  10  to  20  percent  slopes,  severely  eroded 
Berks  silt  loam,  ndges.  20  to  30  percenl  slopes,  moderately  eroded 
Berks  soils,  ridges,  20  to  45  percenl  slopes,  severely  eroded 
Berks  soils,  ridgei.  30  to  60  percent  slopes 


Braddock  and  Thurmoni 
Braddock  and  Thormont 
Breddock  and  Thurmont 
Brinkerton  sill  loam,  0 

Buchanan  gravelly  loam, 
Buct^anan  gravelly  loam 
Bucnanan  gravelly  loam 


gravelly  loams.  3  lo  S  percenl  slopes,  moderately  eroded 
gravelly  loams,  8  to  15  percenl  slopes,  moderately  eroded 
gravelly  loams,  15  to  2b  percent  slopes 
o  8  percent  slopes 
0  lo  3  percenl  slopes 
3  to  8  percent  slopes,  moderately  eroded 
8  lo  15  percenl  slopes,  moderately  eroded 
15  to  25  percent  slopes,  moderately  eroded 


Celvin  channery  loam 
Calvin  channery  loam 
Calvin  channery  loam 
Calvin  shaly  loam,  0  t 


Celvin  channery  fine  sandy  loam,  3  lo  10  percent  slopes,  moderately  eroded 
Calvin  channery  loam,  3  to  10  percent  slopes,  moderately  eroded 
Calvin  channery  loam,  10  to  20  percenl  slopes,  moderately  eroded 
Calvin  channery  loam,  20  to  30  percent  slopes 

,  20  to  30  percenl  slopes,  moderately  eroded 
,  30  lo  45  percent  slopes 
,  45  to  60  percent  slopes 

10  percenl  slopes,  moderately  eroded 
Calvin  shaly  loam.  10  to  20  percent  slopes,  moderalefy  eroded 
Celvin  shaly  loam,  10  lo  20  percenl  slopes,  severely  eroded 
Calvin  shaly  loam,  20  to  30  percenl  slopes 
Calvtn  shaly  loam.  30  lo  45  percent  slopes 

Cfllvin-Berks  channery  loams,  0  lo  10  percent  slopes,  moderately  eroded 
Celvin-Btrks  channery  loams,  10  to  20  percenl  slopes,  moderately  eroded 
Calwln-Berks  channery  loams,  3  to  20  percenl  slopes,  severely  eroded 
Calvin-Berks  channery  loams,  20  lo  30  percenl  slopes,  moderately  eroded 
Cslvln-Berks  channery  loams,  30  to  60  percent  slopes,  moderately  eroded 
Celvin-Monlevallo  shaly  loams,  0  to  10  percent  Hopes,  moderately  eroded 
Calvin-Montevallo  shaly  loams,  10  lo  20  percent  slopes,  moderately  eroded 
Calvin  Montevallo  shaly  loams,  20  lo  30  percenl  slopes,  moderately  eroded 
Calvin  Montevallo  shaly  loams,  20  lo  45  percent  slopes,  severely  eroded 
Calvin-Monlevallo  shaly  loams.  30  to  60  perc 


lery  sill  loam,  0  lo  10 


slopes 

3  to  10  percenl  slopes,  moderately  eroded 
10  to  20  peicent  slopes,  moderately  eroded 
20  10  30  percenl  slopes 


Chandler  sill 

Chandler  sill  loam  and  channery  sill  loai 
Chandler  silt  loam  and  channery  sill  loai 
Chandler  silt  loam  and  channery  silt  loai 
Chewads  gravelly  sandy  loam 
Chewacia  silt  loam 
Chewacia  stony  silt  loam 
Congaree  silt  loam  and  gravelly  loam 
Corydon  clay  loam,  0  lo  3  percenl  slopes 
Corydon  clay  loam,  3  lo  8  percent  slopes,  moderately  eroded 
Corydon  clay  loam,  8  to  15  percent  slopes,  moderately  eroded 
Corydon  extremely  rocky  clay  loam.  0  lo  15  percent  slopes 
Corydon  very  rocky  clay  loam,  3  lo  45  percenl  slopes,  moderately  eroded 
Dekalb  and  Leelonia  very  stony  sandy  loams.  0  to  25  percent  slopes 
Dekalb  and  Leotoma  very  stony  sandy  loami;,  2b  to  45  percent  slopes 
Otkalb  and  Leelonia  very  siony  sandy  loams,  45  to  60  percent  slopes 
Dekalb  and  Lehew  very  stony  loams,  0  lo  25  prrceni  slopes 
Dekalb  and  Lehew  very  stony  loams,  25  lo  45  percent  slopes 
Duffield  sill  loam,  0  lo  3  percent  slopes 
Dulfield  sill  loam,  3  lo  8  percenl  slopes,  moderately  eroded 
Duffield  sill  loam.  8  to  15  percent  slopes,  moderately  eroded 
Outfield  silt  loam,  15  to  25  percenl  slopes,  moderately  eroded 
Dulfield  silt  loam.  8  lo  25  percent  slopes,  severely  eroded 


OuC 
DvC 
OvE2 
Oy82 
OyC2 
Dz 

EdC 

EdD2 

EdE? 

EdF2 

EgA 

EfiD 

EgF 

EnB2 

EhD2 

EhE2 

EhF 

Em 


Dulfield  extremely  rocky  sift  loam,  0  lo  15  percenl  slopes 
Duffield  very  rocky  sill  loam,  3  to  15  percent  slopes 

Dulfield  very  rocky  sill  loam,  8  to  45  percent  slopes,  moderately  eroded 
Ounmore  che'ty  Silt  loam,  3  to  8  percent  slopes,  moderately  eroded 
Dunmore  cherty  siH  loam,  8  lo  15  percent  slopes,  moderately  eroded 
Dunning  and  Melvm  silty  clay  loams 


Edgemont  and  Laidig  channery  l 

Edgemoni  and  Laidig  channery  i 

Edgemont  and  Laidig  channery  l 

Edgemoni  and  Laidig  channery  1 

Edgemont  and  Laidig  very  stony 

Edgemont  and  Laidig  very  stony 

Edgemont  and  Laidig  very  stony 
jm.  5  10  12  perc 


Eiiiber 


land. 


ElA 

EIB2 

EIC2 

EI02 

EwA 

Ev^B2 

EwC2 

FaB 

FaB2 

FaC2 

FaE2 

FrE 

FsA 

FsB2 

FsC2 

FIC2 

FuD 

FuE 

FvC2 

FvC3 

FvE2 

FwA 

FwB2 

FwB3 

Fv-C2 

FwC3 

Fw02 

FwD3 

FwE2 

FwE3 

FyB2 

FvC2 

FyC3 

Fy02 

FyD3 

FyE2 

HaA 

HaB2 

HaB3 

HaC2 

HaC3 

HaD2 

MaD3 

HbD2 

HcD2 

HdE 

HeA 

HeB2 

HeC2 

HeD2 

HfA 

HfB2 


Eroded  I 
Etowah  1 
Etowah  graveli' 
Etowah  graven 
Etowah  gti 


ms,  0  to  12  perce 
ms,  5  to  20  oerce 
ms,  20  to  35  perc 
ms,  35  10  60  perc 
ams,  0  lo  5  oerce 
ams.  5  lo  35  perc 
ams.  35  to  60  pei 
It  slopes,  moderali 
ent  slopes,  modera 
?ni  slopes,  modera 
ent  slopes 


slopes,  moderately  eroded 
1  slopes,  moderately  eroded 
I  slopes,  moderately  eroded 


ly  eroded 
ely  eroded 
ely  eroded 


<elly  loa 


.  0  I 


.  3  to  1 


'nt  slopes 

nl  slopes,  moderately  eroded 
^elly  loam.  8  lo  15  percent  slopes,  moderately  eroded 
ifelly  loam.  15  lo  25  percent  slopes,  moderately  eroded 
Etowah  sill  loam,  0  to  3  percent  slopes 
Etowah  silt  loam.  3  to  8  percent  slopes,  modera 
Etowah  Silt  loam,  8  to  15  percenl  slopes,  mode 


itely  eroded 
rately  eroded 


Faugui 


t  loam.  0  to  5  percent  slopes 
t  loam.  5  to  10  percent  slopes,  moderately  eroded 
y  loam.  10  to  20  percenl  slopes,  moderately  eroded 
f  loam,  20  lo  35  percerM  slopes,  moderately  eroded 
ly  loam,  5  to  35  percenl  slopes 


)  10  perc 


Frankstown 
Frankstown 
Frankstown 


Frank' 


>cky  sill  I 
)cky  s-II  I 


and  Dulfield  char 

and  Duffield  chai 

and  Duffield  char 

and  Ouff-eld  char 

and  OuMield  char 


I  loams,  0  to  3  percent 


■oded 


!ly  eroded 
moderately 


ded 


Frankstown 
Frankstown 
Frankstown 
Frankstown 
Frederick  cl 
Frederick  cl 
Frederick  cl 
Frederick  d 
Frederick  d 
Frederick  cherty  silt  loam,  25 


and  Dutlield  c 
and  Duflield  < 
and  Duffield  < 
lerty  silt  loam, 
lerly  silt  loam, 
leriy  Sill  loam 
lerty  sill  loam 


slopes,  n* 
slopes,  SE 
1  slopes,  ( 

nt  slopes, 
nt  slopes. 


0  to  8  perce 
8  to  15  perc 


I  45  [ 


»ms.  25  10  45  pert 
>ms,  25  to  45  pert 
1  slopes,  moderatel 


;ent 


slopes, 
slopes, 
slopes. 


I  slopes, 
I  slopes, 
iroded 
derately  eroded 
erely  eroded 
oderaiely  eroded 
'verely  eroded 
oderately  eroded 


nod. 


ately  eroded 
ly  eroded 
irately  eroded 
ely  eroded 

'erely  eroded 
derately  eroded 
'erely  eroded 


0  to  3  percent  slopes 
0  lo  8  percenl  slopes,  moderately  eroded 
ay  loam,  3  to  8  percenl  slopes,  severely  eroded 
ay  loam,  8  lo  15  Percent  slopes,  moderately  eroded 
ay  loam,  8  lo  15  percent  slopes,  severely  eroded 
ay  loam.  15  to  25  percent  slopes,  moderately  eroded 
ay  loam,  15  lo  25  percent  slopes,  severely  eroded 
tiremely  rocky  silt  loam,  0  lo  25  percenl  slopes,  moderately  eroded 
(tremely  rock/  silty  clay  loam,  0  lo  25  percent  slopes,  moderately  eroded 
ilremely  rocky  soils,  25  to  45  percent  slopes 
11  loam,  0  to  3  percent  slopes 
It  loam,  0  to  8  percenl  slopes,  moderately  eroded 
Hagetstown  sill  loarT>.  8  to  15  percenl  slopes,  moderately  eroded 
Hagerslown  silt  loam,  15  to  25  percenl  slopes,  moderately  eroded 
Hagerslown  silly  clay  loam.  0  to  3  percent  slopes 
Hagerslown  silty  clay  loam,  0  to  6  percent  slopes,  moderately  eroded 


Hagerslown  clay 
Hagerslown  clay 
Hagerslown  day 
Hagerslown  day 
Hagerslown  clay 


Hagerslown 
Hagerslown 


HIC2 

HfD2 

HbC2 

Hg£2 

HhC2 

HhC3 

HhE2 

HkF 

HIA 

HmE2 

HnB2 

HnC2 

HnC3 


HpD 
HpE 
HfA 


•cky  Sill 


Hagerslown  very 
Hagerslown  very 
Hagerslown  very 
Hagerslown  very 
Hagerslown  very 
Hagerslown  very 
Hagerslown,  Corydon.  and  Ouffi 
Hagerslown  and  Duffield  silt  loi 


8  to  15  .iiercent  slopes,  moderately  eroded 
15  lo  23  percent  slopes,  moderately  eroded 

:ni  slopes,  moderately  eroded 


15  ■ 


Hy  clay  loarr .  3 
illy  clay  loarr .  3 
lily  clay  loarr.  r 
..  45  to  5m  01 


)  45 


Haj 


Highlie 
Highlie 
Highlie 


silt  loai 


,  10 


10  perc 
0  20  J.e. 
0  20  (  ei 
0  30  re, 
0  30  cei 


I  loam.  30  to  45  : 


15  percent  slopes,  modetaiely  eroded 
15  percent  slopes,  se«e'ely  eroded 
I  45  percent  slopes,  moderately  eroded 
nl  slopes 

*y  silt  loams.  0  lo  3  percent  slopes 
ent  slopes,  moderately  eroded 
moderately  eroded 


1  slopes,  severely  eroded 
t  slopes,  moderately  eroded 
;  slopes,  severely  eroded 


rately  eroded 
eralely  eroded 
erately  eroded 


eily  loam,  8  lo  15  perc 


tely  eroded 
ately  eroded 
irately  eroded 


lrD3  Holslon  gravelly  loarr 

lrE2  Holslon  gravelly  loan 

IsB  Holslon  gravelly  sane 

lsC2  Hotston  gravelly  sane 

lsC3  Holslon  gravelly  sane 

llA  Holslon  silt  loam.  0 

ltB2  Holslon  stit  loam.  3 

ltC2  Holston  silt  loam.  8 

Iv  Huntington  gravelly  I 

Iw  Huntington  silt  loam 

U  Huntington  sill  loam. 


LaA 

LaB2 

LaC2 

La02 

LbO 

LbE2 

Lc82 

LcD2 

Le 


LoB? 

LoC2 

LoC3 

LsB 

Ls82 

LsC2 

LsC3 

LsD2 

L5D3 

LsE2 

LsE3 

LsF 

LIB 

L1C2 

L1C3 

LlD2 

LID  3 

LIE2 


Mg82 
MgC2 
MhA 


Laidig  gravelly  I 
Laidig  gravelly  I 
Laidig  gravelly  I 


Laidie  very  ston' 
Landisburg  cher 
Landisburg  cher 
Largent  sill  loar 
Leadvale  gravell 
Leadvale  gravell 
Lmdside  sill  loa 
Lindside  silt  loa 
Litz  channery  lo 


,  local  alluvium 
,  0  to  3  percent  slopes 
,  3  to  8  percenl  slopes,  moderately  eroded 
.  8  to  IS  percen'  slopes,  moderately  eroded 
,  15  to  25  perceil  slopes,  moderately  eroded 


,  8  lo  25  percei 
,  15  to  45  peic 
loam,  3  to  8  |<e 
loam,  8  to  25  c 


ilopes,  moderately  eroded 
I  slopes,  moderately  eroded 
nt  slopes,  moderately  eroded 


silt  loam,  0  to  3  p.'rcent  slopes 

Silt  loam,  3  to  8  pi-rcenl  slopes,  moderately  eroded 


z  cha 


Litz  channery  I 
Litz  shaly  loam 
Litz  shaly  loam 
Lilz  shaly  loam 
Lilz  shaly  loam 
Lilz  sfialy  loarr 


n,  3  lo  10  perce 
n.  10  10  20  perc 


10  I 


20  c 


0  10  10  perce 
3  to  10  perce 
10  to  20  perc 
10  to  20  perc 


Lilz  • 
LitZ  : 


Litz-Teas 
Litz-Teas 
Litz-Teas 
Lilz-Teas 
Litz-Teas 
Litz-Teas 


20  I 


30  c 


m.  20  to  30  c 
m.  30  to  45  c 
m,  30  to  45  [ 


slopes,  moderately  eroded 
1  slopes,  moderately  eroded 
t  slopes,  severely  eroded 

ips.  moderately  eroded 
ipes,  moderately  eroded 
ipes,  severely  eroded 
oes,  moderately  eroded 
ipes,  severely  eroded 
JOes,  moderately  eroded 
)Des.  severely  eroded 


;ent  s 


0  to  a  percent  slopes 
3  to  15  percent  slopes,  r 
,  8  to  15  percent  slopes,  i 
15  to  25  percent  slopes. 
15  to  25  percent  slopes. 


derately  eroded 
erely  eroded 
oderately  eroded 
iverely  eroded 


annery  silt  loams,  25  lo  45  percent  slopes,  moderately  eroded 

)  gravelly  foam,  3  to  8  percent  slopes,  moderately  eroded 
1  gravelly  loam,  8  lo  IS  percent  slopes,  moderately  eroded 
)  silt  loam,  0  lo  3  percenl  slopes 


l^mD2 

MmD3 

MoA 

MoB2 

MoC2 

MqD2 

Mo03 

Moe2 

l^rB 

MrC2 

M(C3 

l^rD2 

Ivir03 

l^sA 

MsB2 

M5C2 


l^vC2 
MvD2 
MvE2 
MwB3 
|v1w03 

M»82 
MkC2 
l^yE2 
I^vF2 


f-lonongahela  sill  loam,  3  to  8  oercent  slopes,  moderately  eroded 
Monongahela  silt  loam,  8  to  15  percent  slopes,  moderately  eroded 
Monongahela  sill  loam,  15  lo  25  percent  slopes,  moderately  eroded 
Montevallo  shaly  loam,  0  to  10  percent  slopes,  moderately  eroded 
Montevallo  shaly  loam,  10  lo  20  percent  slopes,  moderately  eroded 
Montevallo  shaly  loam,  10  to  20  percent  slopes,  severely  eroded 
Montevallo  shaly  loam,  20  to  30  percent  slopes,  moderately  eroded 
Montevallo  shaly  loam.  20  to  30  percent  slopes,  severely  eroded 
I  3  percent  slopes 

I  8  percenl  slopes,  moderately  eroded 
•  15  percenl  slopes,  moderately  eroded 
to  25  percent  slopes,  moderately  eroded 
I  25  percenl  slopes,  severely  eroded 
to  45  percenl  slopes,  moderately  eroded 

T\,  3  to  15  percent  slopes,  moderately  eroded 
n,  8  lo  15  percent  slopes,  severely  eroded 
Ti,  15  to  25  percenl  slopes,  moderately  eroded 
lo  25  percenl  slopes,  severely  eroded 
slopes 

noderately  eroded 
moderately  eroded 
Myersville  channery  loam,  0  lo  3  percent  slopes 
Myersville  channery  loam,  3  tO  10  pe 
Myersville  channery  loam,  10  to  20  e 


Ss 

TbC2 
TaCS 
TaD 
TaE2 


TrC2 

TyB 

Wa 

WbA 

W6B2 

WbC2 

WbC3 

Wb02 

WbD3 

WbE2 

WbS 

WgC2 

WgC3 

WgD2 

Wm82 
WmC2 
WmC3 
WmD2 
WmD3 


I  gravelly  loam 

I  gravelly  loam 

I  gravelly  loam 

I  gravelly  loam 

I  gravelly  loarr 


I  gravelly  5 


silt  loai 


dy  loam,  1 
I  10  3  perc 

I  lo  8  percent  slopes,  r 
loam,  8  to  15  percent  slopes, 
channery  loam 
rhannery  loam 


Myeisv 

Myersv 
Myersv 
Myersv 
Myerss 
Myersv 
Myersv 
Myersv 


opes,  moderately  eroded 
ilopes.  moderately  eroded 
hannery  loam.  20  to  30  percent  slopes,  moderately  eroded 
hannery  loam,  30  lo  45  percent  slopes,  moderately  eroded 
hannery  sill  loam,  3  to  10  percent  slopes,  severely  eroded 
hannery  stIt  loam,  10  to  30  percent  slopes,  severely  eroded 
•It  loam,  0  lo  3  percent  slopes 
lit  loam,  3  to  10  oercent  slopes,  moderately  eroded 
lit  loam,  10  lo  20  percent  slopes,  moderately  eroded 
ery  stony  loam,  3  lo  30  percent  slopes,  moderately  eroded 
ery  stony  loam,  30  to  55  percent  slopes,  eroded 


Philo  gravelly  < 


ndy  I 


Pope  fine  sandy  loam 
Pope  gravelly  loam 
Pope  gravelly  sandy  loam 
Pope  silt  loam 
Pope  stony  gravelly  loam 


Stony  rolling  land 
Stony  steep  land 

Talladega  gravelly  sil 
Talladega  gravelly  sil 
Talladega  gravelly  sil 
Talladega  gravelly  sii 
Terrace  escarpments 

Thurmoni  gravelly  loam.  3  to  8  percent  slopes,  moderately  eroded 
Thurmont  gravelly  loam,  8  lo  IS  percent  slopes,  moderately  eroded 
Trego  gravelly  silt  loam,  0  to  3  percent  slopes 
Trego  gravelly  silt  loam,  3  lo  15  percent  slopes,  moderately  eroded 
Tyler  silt  loam,  0  lo  8  percent  slopes 


hick  solui 


slopes,  moderately  eroded 


.  0  lo  20  percent  slopes,  moderately  eroded 
,  10  lo  20  percenl  slopes,  severely  eroded 
,  20  to  30  percenl  slopes 
,  20  to  45  percent  slopes,  moderately  eroded 


,  0  to  8  percent  slopes 
ravelly  loam,  0  to  3  perc 
ravelly  loam,  0  lo  8  perc 


Warners  loj 

Waynesboro  gravelly  loam,  0 
Waynesboro  gravelly  loam,  0 
Waynesboro  gravelly  loam,  8 
Waynesboro  gravelly  loam.  3 
Waynesboro  gravelly  loam,  1^ 
Waynesboro  g'^velly  loam,  1? 
Waynesboro  gravelly  loam,  2f 
Waynesboro  gravelly  sandy  lo 
Waynesboro  gravelly  sandy  lo 
Waynesboro  g'^velly  sandy  lo 
Waynesboro  gravelly  sandy  lo 
Wehadkee  silt  loam 
Westmoreland  channery  silt  I 
Westmoreland  channery  silt  I 
Westmoreland  channery  silt  I 
Westmoreland  channery  sill  I 
Westmoreland  channery  silt  I 


I  sloi 


slopes,  moderately  eroded 
3  15  percent  slopes,  moderately  eroded 
3  15  percent  slopes,  severely  eroded 
to  25  percent  slopes,  moderately  eroded 
to  25  percent  slopes,  severely  eroded 
to  45  percenl  slopes,  moderately  eroded 
m,  0  to  8  percent  slopes 
m,  3  to  15  percenl  slopes,  moderately  eroded 
m,  8  to  15  percent  slopes,  severely  eroded 
m,  15  to  25  percent  slopes,  moderately  eroded 


m,  3  lo  10  percent  slopes, 
m.  10  lo  20  percent  slopes, 
m,  3  to  20  percent  slopes. 


loderalely  eroded 
noderately  eroded 
topes,  severely  eroded 
slopes,  moderately  eroded 
slopes,  severely  eroded 


Soil  map  constructed  1961  by  Cartographic  Division, 
Soil  Conservation  Service,  USDA,  from  1957  serial 
photographs.  Controlled  mosaic  based  on  Maryland 
plane  coordinate  syst«m,  Lambert  conlormal 
conic  projection.  1927  North  Amtncan  datum. 


WASHINGTON  COUNTY,  MARYLAND-SHEET  NUMBER  2 


WASHINGTON  COUNTY,  MARYLAND  -  SHEET  NUMBER  3 


WASHINGTON  COUNTY,  MARYLAND- SHEET  NUMBER  4 


WASHINGTON  COUNTY,  MARYLAND  -  SH  EET  NUMBER  5 


WASHINGTON  COUNTY,  MARYLAND-SHEET  NUMBER  6 


WASHINGTON  COUNTY,  MARYLAND  -  SHEET  NUMBER  9 


WASHINGTON  COUNTY,  MARYLAND- SHEET  NUMBER  10 


WASHINGTON  COUNTY,  MARYLAND-SHEET  NUMBER  11 


WASHINGTON  COUNTY,  MARYLAND  -  SHEET  NUMBER  12 


WASHINGTON  COUNTY,  MARYLAND- SHEET  NUMBER  13 


WASHINGTON  COUNTY,  MARYLAND-SHEET  NUMBER  15 


WASHINGTON.  COUNTY,  MARYLAND  -  SH  EET  NUMBER  18 


WASHINGTON  COUNTY,  MARYLAND  -  SHEET  NUMBER  19 


WASHINGTON  COUNTY,  MARYLAND-SHEET  NUMBER  20 


WAJHINGTOr,  COUNTY,  MARYLAND  -  SHEET  NUMBER  23 


WASHINGTON  COUNTY,  MARYLAND  -  SHEET  NUMBER  26 


WASHINGTON  COUNTY,  MARYLAND -SHEET  NUMBER  27 


WASHINGTON  COUNTY,  MARYLAND -SHEET  NUMBER  28 


WASHINGTON  COUNTY,  MARYLAND-SHEET  NUMBER 


WASHIN&T  j  .  CC  i  •  TY,  MARYLAND- SHEET  NUMBER  31 


WASHINGTON  COUNTY,  MARYLAND-SHEET  NUMBER  33 


(Joins  sheet  37) 

Scale    1:15840      i  i  \  1  i  i 


WASHINGTOf'i  COUNTY,  MARYLAND  -  SHEET  NUMBER  34 


Scale   1:15840  l 


WASHINGTON  COUNTY,  MARYLAND  -  SHEET  NUMBER  35 


WASHINGTON  COUNTY,  MARYLAND-SHEET  NUMBER  36 


WASHINGTON  COUNTY,  MARYLAND  -  SH  EtT  NUMBER  37 


WASHINGTON  COUNTY.  MARYLAND- SHEET  NUMBER  38 


WASHINGTON  COUNTY.  MARYLAND -SHEET  NUMBER  39 


WASHINGTON  COUNTY,  MARYLAND-SHEET  NUMBER  40 

(Joins  sheet  36) 


Scale    1:15840      ?  ,  ,  ,  ^  5000  Feel 


WASHINGTON  COUNTY,  MARYLAND-SHEET  NUMBER  41 


WASHINGTON  COUNTY.  MARYLAND- SHEET 


WASHINGTON  COUNTY,  MARYLAND -SHEET  NUMBER  46 

  ______  (Joins  sheef  43) 


WASHINGTON  COUNTY. 


I 


WASHINGTON  COUNTY.  MARYLAND- SHEET  NUMBER  49 


WASHINGTON  COUrjTY,  MARYLAND-SHEET  NUMBER  51 


WASHINGTON  COUNTY,  MARYLAND  -  SHEET  NUMBER  52 

(Joins  sheet  50) 


WASHINGTON  COUNTY,  MARYLAND-SHEET  NUMBER  53 

(Joins  sheef  51) 


WASHINGTON  COUNTY.  MARYLAND  -  SHEET  NUMBER  ^  - 


5  000  reel 


U  S.  DEPARTMENT  OF  AGRICULTURE 
SOIL  CONSERVATION  SERVICE 


WASHINGTON  COUNTY,  MARYUND 


MARYLAND  AGRICULTURAL  EXPERIMENT  STATION 


SOIL  LEGEND 


The  '"»t  csDital  ielte»  a  Ihe  mitiai  one  ol  the  soi'  name.  *  second 
ciDiUi  retier.  A.  6.  C.  D.  E.  or  F.  shows  the  slope.  Syinbols  without  i 
slop*  letter  are  (hose  of  nearly  leve'  soils,  such  as  Huni>ngion  s<it  >oar 
or  ol  land  noes,  such  as  Rocky  eroded  'and.  that  hue  a  cor^S'derable 
ol  slop*    A  Imal  numl>er.  2  or  3.  snows  that  the  soil  ts  eioded. 


RfO? 


BkCJ 


CaB? 

CcB2 

CcC? 

CcD 

CcD? 

CcE 

CcF 

CmB? 

CmC2 

CmC3 

CmD 

CmE 

CnS? 

CrtC? 

CnC3 

Cn02 

CnF? 

CdB2 

CoC? 

CoD? 

CoE3 

Cor 

CfB 

CrBi> 

CfC2 

CfO 


Cu 

Cv 

CwA 

CwB2 

CwC? 

c«c 

C»E2 


DkO 

OkE 

DmA 

DmB? 

DmC2 

OnrtD3 


Bentvola  clay  loam,  0  to  3  cwrcani  tlope* 

Banavota  clay  loam,  3  lo  8  parcani  ilopat,  moderately  eroded 

Bancvota  clay  loam,  8  lo  IS  parcent  itopei,  moda'alaly  erodtd 


Banevola  clay  loai 
Barks  channary  loa 
Btrhs  channary  loai 
Berht  channary  loa 
Barht  channary  loai 
Barks  ihaly  sill  loa 
Berks  ihaly  lilt  toai 
Barks  shaly  Hit  loai 
Barks  Shaly  nil  loam,  \i  lo  2b  parci 
Berks  slK  loam,  ndfas,  0  lo  10  parci 


lb  parcani  slopes,  laoeraly  eroded 
ridgas,  0  lo  10  percent  Slopes,  moderately  eroded 
ridgai,  10  Id  20  parcani  slopes,  modaralaiy  eroded 
'idge*.  10  to  20  parcani  ilopas,  severely  eroded 
ridges,  20  lo  30  percent  ilopes,  moderately  eroded 

0  to  B  parcani  slopes 

1  to  8  percent  slopes,  moderately  eroded 
8  lo  \b  percent  slopes,  moderately  erodiid 

slopes,  moderalely  eroded 
slopes,  moderalely  eroded 


rant  slopes,  moderalely  eroded 
slopes,  severely  eroded 
tlopei 

It,  3  lo  8  percent  slopes,  modtrataiv  trodad 
It.  B  lo  15  parcani  slopes,  modarattly  eroded 
It.  16  to  2!>  percent  slope* 


Barks  till  loam,  ndget.  20  to  10  D«r 
Berks  soils,  ridges,  20  lo  pnrcent 
Berks  toils,  ridgei.  30  lo  60  percent 
Braddock  and  Thurmont  gravelly  loar 
Braddorh  and  ThurmonI  gravelly  loan 
Braddork  and  ThurmonI  gravelly  loan 
Brinkorlon  sill  loam,  0  to  8  percent  ilopas 
Buchanan  gravelly  loam,  0  to  3  percent  Hopes 
Buchanan  gravelly  loam,  3  lo  B  percent  slopes,  moderately  eroded 
Buchenan  gravelly  loam,  8  to  lb  percent  ilopes,  moderalely  eroded 
Buchanan  gravelly  toam,  15  lo  2%  pa'cani  slopes,  modaralaly  eroded 
Calvin  chennery  line  sandy  loam,  3  to  10  percont  slopes,  moderalely  eroded 
Calvin  channery  loam,  3  lo  10  percont  slopes,  moderately  eroded 
Calvin  channary  loam,  10  lo  20  percent  tlopet.  moderately  eroded 
Calvin  rhennary  loam,  20  lo  30  parceni  tlopet 
Calvin  channeiy  loam,  20  lo  30  perienl  slopes,  modaralely  eroded 
Calvin  channary  loam,  30  lo  4^  percent  tlopet 
Calvin  channary  loam,  4%  lo  60  parrnnt  tlopet 
Calvin  Ihaly  loam.  0  lo  10  peicani  ilopat,  moderelely  eroded 
Cetvin  shaly  loam,  10  lo  20  perceni  tlopet,  moderalely  eroded 
Calvin  shaly  loam,  10  lo  20  percent  tlopet,  leverely  eroded 
Calvin  shaly  loam,  20  lo  30  percent  tlopei 
Calvin  shaly  loam,  30  lo  M  parcani  slopes 

Calvln-Berkt  channary  loams,  0  to  10  percent  tlopei,  moderalely  erodld 

Calvin  Berht  channeiy  loamt,  10  lo  20  parcani  ilopei.  moderalely  eroded 

Calvln  Berhi  chennery  toamt,  3  lo  20  paiceni  etopet.  severely  eroded 

Calvin  Barhi  channary  loami,  20  lo  30  perceni  slopes,  moderalely  eroded 

Calvln'Barki  channary  loams.  30  lo  60  perceni  tlopet.  moderately  eroded 

Calvln  Monlovallo  ihaly  loams,  0  to  10  perceni  slopei,  moderalely  eroded 

Calvln  Monlevallo  ihaly  loami,  10  lo  20  parceni  slopes,  modaralaly  eroded 

Calvin-Monlavallo  shaly  loams,  20  lo  30  percent  ilooei.  moderately  eroded 

Celvin  Monlevallo  ihaly  loamt,  20  lo  4*i  percent  slopes,  severely  eroded 

Calvln  Monlevallo  thaly  loamt,  30  lo  60  perceni  tlopet 

Chandler  sill  loam  and  chennery  sill  loam,  0  lo  10  percent  slopei 

Chandler  sill  loam  and  channary  nil  loam,  3  lo  10  percent  ilopai,  moderalely  eroded 

Chandler  silt  loam  and  channary  sill  loam.  10  lo  20  percent  slopes,  moderalely  arodad 

Chandler  sill  loam  and  chennery  silt  loam,  20  lo  30  percent  tlopet 

Chewacia  gravelly  sandy  loam 

Chawacia  lilt  loam 

Chawaria  stony  nil  loam 

Congaroo  silt  loam  and  gravelly  loam 

Corydon  clay  loam,  0  lo  3  percent  slopes 

Corydon  ciny  loam,  3  to  B  percent  slopes,  moderalely  eroded 

Corydon  clay  loam,  8  lo  lb  percent  slopei,  moderelely  eroded 

Corydon  oilremply  rorky  rley  loam,  0  lo  \b  perceni  slopes 

Corvdon  very  rocky  clay  loam,  3  lo  45  percent  slopes,  moderately  eroded 


Dekalb  and  l  eatonii 
Dekalb  and  leelonii 
Dekalb  and  Leetomi 
Dekalb  and  Lehew  t 


slony  sandy  loamt.  0  lo  2b  percent  slopes 
slony  sandy  looms,  2b  to  4b  percent  slopes 
slony  sandy  loams,  Ab  lo  60  perceni  slopes 
pry  ilony  loams,  0  to  2b  percent  i 


Dehelb  and  Lehew  very  stony  Ipems,  25  lo  45  percent  Hop** 
Dulliold  nil  loam,  0  to  3  peiceni  slopes 
Dufdald  iill  loam,  3  to  8  percent  slopes,  moderalely  eroded 
Dullleld  silt  loam,  8  lo  15  parcani  slopes,  moderately  eroded 
Oullitid  slit  loam,  15  lo  25  parcani  slopes,  moderately  eioded 
Dutlield  nil  loam,  8  to  ?S  percent  siopei,  severely  eroded 


DuC 
OvC 
DvE? 
OyB2 
OyC2 
Ot 

CdC 
Ed02 
EdE? 
EdF2 


EhB2 
Eh02 
EhE2 


EiA 

El62 

EIC2 

EID2 

EmA 

E«B2 

E<vC2 

FaB 

FeB2 

FaC? 

FaE2 

FrE 

FlA 

FtB2 

FiC2 

FIC2 

FuD 

FuE 

FvC2 

FvC3 

FvE? 

FwA 

FwB2 

Fw63 

FwC2 

FwC3 

FwD2 

Fv>D3 

Fv>E2 

FwE3 

FyB2 

FyC2 

FyC3 

FyD2 

FvD3 

FyE2 


HaB3 

H8C2 

HaC3 

Ha02 

H8D3 

HbD? 

HcO? 

HdE 

HeA 

HeB? 

NeC2 

H*D2 

HfA 

M(B2 


Ouff-eld  eilremely  rocky  nil  loam,  0  to  15  percent  slopes 

DuKieid  very  focky  nit  loam,  3  lo  15  percent  tlooei 

Du»-eid  very  rocky  sill  loam,  8  to  45  oerceni  slopes,  moderalely  eroded 

Ounmore  cherty  Silt  loam,  3  10  8  percent  slopes,  moderelely  eroded 

Donmpra  cheMy  nit  '0«m,  8  to  15  perceni  slopes,  moderately  eroded 

Dunning  and  Malvin  silly  day  loams 


EdgemonI  and  La-dig  channary  lo. 
Edgamont  and  La<dig  channary  lo. 
EdgemonI  and  La.d>g  channary  lo. 
Edgemonl  and  Laidig  cnannery  lo. 
EdgemonI  and  Laidig  very  Slony  i' 
Edgamont  and  Laidig  very  slony  l< 
EdgemonI  and  Laidig  very  slony  li 
EHiber  cherty  loam,  5  lo  12  c 


t,  0  to  12  percent  stooet 

(.  5  to  20  percent  slopes,  moderalely  eroded 

I.  20  10  35  perceni  slopes,  moderately  eroded 

I.  35  to  60  percent  slopes,  moderately  eroded 

IS,  0  lo  5  perceni  slopes 

«.  5  lo  35  percent  slopes 

IS,  35  10  60  percent  Hopes 

slopes,  moderately  eroded 


Elliber  cherty  loam,  12  to  25  percent  slopes,  moderately  eroded 

EHiber  cherty  loam,  25  10  45  percent  slopes,  moderately  eroded 

Elliber  cherly  loam,  45  lo  55  percent  slopes 

Eroded  land,  greentione  maienali 

Eroded  land,  limeslonc  maienals 

Eroded  land,  sandtione  and  quartiite  materials 

Eroded  land,  shale  and  sch.tl  maienali 

Etowah  gravelly  loam.  0  to  3  percent  slopes 

Elowah  gravelly  loam,  3  lo  8  perceni  slopes,  moderately  eroded 

Elowoh  gravelly  loam,  8  lo  15  percent  slooes.  moderalely  eroded 

Eiowah  gravelly  loam.  15  to  25  percent  slopes,  moderalely  eroded 

Elowah  till  loam,  0  10  3  percent  slopes 

Etowah  Sill  loam.  3  to  8  percent  slopes,  moderalely  eroded 

Elowah  silt  loam.  8  lo  15  perceni  slopes,  moderalely  eroded 

Fauquier  channary  loam.  0  lo  5  percent  slopes 

Fauquier  chennery  loam,  5  to  10  percent  slooes.  moderately  eroded 

Fauqu<er  chennery  loam,  10  lo  20  percent  slopes,  moderately  eroded 

Fauquier  channery  loam.  20  to  35  percent  slopes,  moderalely  eroded 

Fauquier  very  stony  loam,  5  lo  35  percent  slopes 

Fauquier  nil  loam,  0  lo  3  percent  slopes 

Fauquier  S'U  loam,  3  lo  10  percent  slopes,  moderately  eroded 


Fauquier  sill  loam,  10  lo  20  per 
Fauquier  sill  loam,  shallow,  3  to 
Frankstown  enlremtly  rocky  siil  I 


;ent  slopes,  moderalely  coded 
20  percent  slopes,  moderately  eroded 
)am,  0  to  25  percent  slopes 
jam.  25  to  45  percent  slooes 
3  lo  15  perceni  slopes,  moderately  eroded 
slopes,  severely  eroded 
ceni  slopes,  moderately  eroded 
0  to  3  percent  slopes 
3  10  8  percent  slopes,  moderalely  eroded 
0  lo  8  percent  slooes,  severely  eroded 


I  15  oercer 


Frankstown  very  rocky  silt  loam,  3  I 
Frankstown  vary  rocky  nit  loam.  8  t 
Frankstown  very  rocky  till  loam.  15 
Frankstown  and  OuHield  channery  s 
Frankstown  and  Dullield  Channery  s 
Frankstown  and  Dulfield  channery  s 
Frankstown  end  Dul'iald  channery  siH  loams.  8  lo  15  percent  slopes,  moderately  eroded 
Frankstown  and  Duffietd  channery  siH  loams.  8  to  15  percent  slopes,  severely  eroded 
Frankstown  and  DuM<eld  channery  silt  loams.  15  to  25  percent  slooes,  moderately  eroded 
Frankstown  and  Oulfield  channary  silt  loams.  15  to  25  oerceni  slooes,  severeiv  eroded 
Frankstown  and  Dullield  channery  sill  loams,  25  to  45  perceni  slopes,  moderately  eroded 
Frankstown  and  OuHield  channery  silt  loams,  25  to  45  percent  slopes,  severely  eroded 
Frederick  cherly  silt  loam,  0  to  8  percent  slopes,  moderately  eroded 
Frederick  cherty  sill  loam,  8  to  15  percent  slopes,  moderately  eroded 
Frederick  cherty  sill  loam.  8  to  15  percent  slopes,  severely  eroded 
Frederick  cherty  siH  loam.  15  lo  25  percent  slopes,  moderately  eroded 
Frederick  cherty  silt  loam,  15  lo  25  percent  slopes,  severely  eroded 
Frederick  cherty  nl|  loam,  25  to  45  oerceni  slopes,  moderately  eroded 
Hagarslown  clay  loam.  0  to  3  percent  slopes 
Hageritown  clay  loam,  0  lo  8  percent  slopes,  moderalely  eroded 
Hagerstown  clay  loam.  3  to  B  percent  slopes,  severely  eroded 
Hagerstown  day  loam.  8  to  15  percent  slopes,  moderately  eroded 
Hagerstown  clay  loam.  8  to  15  percent  slopes,  severely  eroded 
Hagerstown  clay  loam.  15  to  25  percent  slopes,  moderately  eroded 
Hagerstown  clay  loam,  15  lo  25  percent  slooes,  severely  eroded 
Megerstown  emremely  rocky  Silt  loam.  0  lo  25  percent  slooes.  moderately  eroded 
Hagerstown  eilrcmaly  rocky  silty  clay  loam.  0  to  25  percent  slopes,  moderately  eroded 
Hagerstown  eitremely  rocky  soili,  25  to  45  percent  slopes 
Hagerstown  sitl  loam,  0  lo  3  percent  slopes 
Hagerstown  sill  loam,  0  to  8  perceni  slooes,  moderately  eroded 
Hagerstown  nil  loam,  8  lo  15  percent  slooes.  moderately  eroded 
Higenlown  silt  loam.  15  to  25  percent  slooes,  moderately  eroded 
Hagerstown  silly  clay  loam.  0  to  3  percent  slooes 
Hagarilowin  nity  clay  loam.  0  lo  8  percent  slooes.  moderately  eroded 


NIC  2 

HfD2 

HgC2 

HgE2 

HhC2 

HhC3 

HhE2 

HkF 

HIA 

HmE2 

Hn62 

HnC2 

HnC3 

Hn02 

Hn03 

HnE 

HoB 

HoB2 

HoC2 

HoE2 

HpB 

HpD 

HpE 

HrB2 


LaB2 

LaC2 

LaD2 

LbO 

LbE2 

LcB2 

LcD2 

Le 

LgA 


LoB2 

LoC2 

LoC3 

LsB 

Ls82 

LsC2 

LsC3 

Ls02 

LsD3 

LsE2 

LsE3 


HC2 

Lie  3 

LID? 

L1D3 

LtE2 

Me 

Mg82 

MgC2 


Hagerstown  silly  c'ay  loai 
Hagerstowr>  S'lty  clay  loai 
Hagerstown  very  rocky  n 
Hagerstown  very  rocky  si 
Hagerstowi 
Hagerslowi 

Hagerstown  very  rock' 
Hegersiown  very  rock 
Hagerstown,  Corydon. 
Hagerstown  and  Oufli 


to  15  perceni  slopes,  moderately  eroded 
I  to  25  percent  slooes.  moderately  eroded 
•n.  3  10  15  percent  slopes,  moderately  eroded 
■n,  15  lo  45  oerceni  slopes,  moderalely  eroded 


.Illy  Clay  I. 


15  lo  45  £ 


ended 
!verely  eroded 
moderately  o-oded 


id  Dutfield  very  rocky  siH  loams.  0  to  3  percent  sloors 
silt  loams,  25  to  45  percent  slopes,  moderately  ero-lcd 
.  0  10  10  percent  slopes,  moderalely  eroded 
I.  10  to  20  percent  slopes,  moderately  eroded 
,  10  to  20  percent  slopes,  severely  eroded 
,  20  lo  30  oerceni  slopes,  moderately  eroded 
,  20  to  30  percent  slopes,  severely  eroded 
.  30  to  45  oerceni  slooes 


H.ghfield  very  slo 
Highfield  very  sto 
Holston  gravelly  I 
Holslon  gravelly  I 
Holston  gravelly  I 
Holslon  gravelly  ( 
Holstor^  gravelly  I 
Holston  gravelly  I 
Holston  gravelly  • 
Holston  gravelly  ■ 
Holslon  gravelly  s 


I  10  C 


(  loam.  5  10  30  c 


.  8  10  25  ( 


lopes. 


ent  slopes,  m 
:ent  slopes 
rcent  slopes 
ercent  slopes 


oderalely  eroded 
moderately  eroded 
Tioderalely  eroded 


moderalely  eroded 


,  25  I 


45  C 


Hol 


,ilt  I 


Holston  silt  loam. 
Holslon  silt  loam, 
Huntington  fine  sa 
Huntington  gravellt 
Huntington  silt  loa 
Huntington  silt  loa 
Laidig  gravelly  loar 


^andy  loam.  3  to  8  oerceni  slopes 
sandy  loam,  3  to  15  percent  slooes.  modetale 
;andy  loam.  8  lo  15  percent  slopes,  severely  ( 
.  0  to  3  percent  slopes 
.  3  to  8  percent  Slopes,  moderately  eroded 
,  8  lo  15  percent  slopes,  moderately  eroded 


dig  gri 


elly  I. 


3  to  e  perce 
8  10  15  oerc 
15  to  25  per 


Laidig  gravelly  loam, 
Laidig  gravelly  loam, 
Laidig  very  stony  loai 
Laidig  very  stony  loai 
Landisburg  cherty  sil 
Landisburg  cherty  sil 
Largeni  sill  loam 
Leadvale  gravelly  silt  loam,  0 
Leadvale  gravelly  siit  loam,  3 


.  3 


ilopes,  moderately  eroded 
slopes,  moderately  eroded 
ercent  slooes.  moderately  eroded 

1  percent  sloprs,  moderalely  eroded 
I  8  percent  slopes,  moderately  eroded 
I  25  percent  slopes,  moderately  eroded 


'rcent  slopes,  moderalely  eroded 
lerceni  slopes,  moderalely  eroded 
letcent  slopes,  severely  eroded 


i%.  moderately  eroded 


1  20  percent  slopes. 


Lili-Teas  chai 


lery  sill  I 


moderalely  eroded 
,  moderalely  eroded 
,  moderalely  eroded 


Melvin  sill  loam 

Monongahela  gravelly  loam.  3  lo  8  percent  slopes,  moder 
Monongahels  gravelly  loam,  8  to  15  percent  slopes,  mode 
Monongahela  siU  loam.  0  to  3  percent  slopes 


MhB2 

MhC2 

Mh02 

MmB2 

MmC2 

MmC3 

MmD2 

MmD3 

MoA 

MoB2 

MoC2 

MoD2 

MoD3 

MoE2 

MrB 

MrC2 

MrC3 

Mr02 

MrD3 

MsA 

MsB2 

MsC2 

MvA 

MvB2 

MvC2 

MvD2 

MvE2 

MwB3 

Mw03 

MnA 

M)iB2 

M»C2 

MyE2 

MyF2 


Monongaheli 
Monongahel. 
Monongahela  silt  loa 
Montevalio  shaiy  loai 
Monlevallo  Shaly  loai 


Monteva 
Monieva 


TaC2 
TaC3 
TaD 
TaE2 


TrC2 

TyB 

Wa 

WbA 

WbB? 

WbC? 

WbC3 

Wb02 

WbD3 

WbE2 

WgB 

WgC2 

WgC3 

WgD2 

Wh 

WmB2 
WmC2 
WmC3 
WmD2 
Wm03 


Mur'ill  gravelly  loai 
Murrill  gravelly  loai 
Murrill  gravelly  loai 
Murrill  gravelly  loai 
Murrill  gravelly  loam.  25 
Murrill  gravelly  sandy  loar 
Murrill  gravelly  sandy  loai 
Murrill  gravelly  sandy  loai 
Murrill  gravelly  sandy  loai 
Murrill  gravelly  sandy  loai 


Mui 


lit  1. 


ham 


Murrill  nil  loarr 
Murrill  silt  loam 
Myersville  chani 
Myersvilti 
Myersvilli 
Myersvilli 
MyersviMi 
Myersville  ch, 
Myersville  ch 
Myei 


lit  loam,  3  10  8  percent  slopes,  moderately  aroded 
ill  loam.  8  lo  15  percent  slopes,  moderately  eroded 
ill  loam  15  to  25  perceni  slooes,  moderately  eroded 
,  0  to  10  percent  Slopes,  moderately  eroded 
I.  10  to  20  percent  slopes,  moderately  eroded 
I,  10  to  20  percent  slopes,  severely  erodtd 
.  20  to  30  percent  slopes,  moderately  eroded 
I,  20  to  30  perceni  slopes,  severely  eroded 
0  10  3  percent  slopes 
0  lo  8  oerceni  slopes,  moderately  eroded 
8  to  15  percent  slopes,  moderately  eroded 
15  to  25  percent  slopes,  moderalely  eroded 
8  to  25  percent  slopes,  severely  eroded 
25  to  45  percent  slopes,  moderately  eroded 
0  to  8  percent  slopes 
3  to  15  percent  slopes,  moderately  eroded 
8  to  15  percent  slopes,  severely  eroded 
15  to  25  percent  slopes,  moderalely  eroded 
indy  loam.  15  to  25  percent  slopes,  severely  eroded 
0  to  3  percent  slopes 
0  lo  8  percent  slopes,  moderately  eroded 
8  to  15  oerceni  slopes,  moderately  eroded 
ry  loam,  0  to  3  percent  slopes 


inery  loam 
y  loam 


10  10  20 


mery 


ry  loam,  20  to  30  perce 
ry  loam.  30  to  45  perce 
(v  nit  loam.  3  lo  10  P«i 
It  loam,  10  to  30  p 


10  percent  slooes.  moderately  eroded 
slopes,  moderately  eroded 
slooes.  moderately  eroded 
slopes,  moderately  eroded 
nt  slopes,  severely  eroded 
ent  slopes,  severely  eroded 


Myersville 
Myeisvilie 


Myersville  very  stony  loai 

Philo  gravelly  sandy  loan 

Philo  silt  loam 

Pope  line  sandy  loam 

Pope  gravelly  loam 

Pope  gravelly  sandy  loin 

Pope  silt  loam 

Pope  stony  gravelly  loam 


Stony  rolling  land 
Stony  steep  land 
Talladega  gravelly  sill  loam 
Talladega  gravelly  silt  loam 
Talladega  gravelly  silt  loam 
Talladega  gravelly  silt  loam 

ThurmonI  gravelly  loam.  3 
ThurmonI  gravelly  loam,  8 
Trego  gravelly  silt  loam.  0 
Trego  gravelly 


,  0  to  3  percent  slopes 

,  3  to  10  percent  slopes,  moderalely  eroded 

.  10  to  20  oerceni  slopes,  moderately  eroded 


ml  slopes,  moderalely 


ianl.  0  to  20  percent  slopes,  moderalely  arodad 
iani,  10  to  20  percent  slopes,  severely  eroded 
lanl.  20  to  30  percent  slopes 
lanl.  20  (0  45  percent  slopes 


iod«ralely  eroded 


.  3  to  8  percent  slopes,  moderelely  eroded 
,  8  to  15  percent  slopes,  moderately  eroded 
,  0  to  3  oerceni  slopes 
,  3  to  15  percent  slopes,  moderalely  eroded 


Tyler  nit  loam,  0  to  8  percent  slopes 


m.  0  I 


Waynesborc 
Waynesboro 
Waynesboro 


Wayr 


Iborc 


cent  slopes 
.  0  to  3  perce 
,  0  to  8  perc« 
,  8  lo  15  pert 
,  3  to  15  oerc 


n  slopes 

M  slopes,  moderalely  eroded 
tnt  slopes,  moderalely  eroded 
int  slopes,  severely  eroded 


,  15  to  25  percent  slopes,  moderately  eroded 

,  15  lo  25  percent  slopes,  severuly  eroded 

.  25  to  45  percent  slopes,  moderalely  eroded 

y  loam.  0  lo  8  percent  slooes 

/  loam.  3  to  15  percent  slooes.  moderately  eroded 

y  loam.  8  to  15  perceni  slopes,  severely  eroded 

/  loam,  15  lo  25  perceni  slopes,  moderately  eroded 


Waynesboro  gravelly  I 
Waynesboro  gravelly  I 
Waynesboro  gravelly  I 
Waynesboro  gravelly  ; 
Waynesboro  gravelly  s 
Waynesboro  gravelly  j 
Waynesboro  gravelly  ! 
Wehadkee  sill  loam 

Westmoreland  channery  silt  loam,  3  to  10  percent  slopes,  moderalely  eroded 
Westmoreland  channery  sill  loam,  10  to  20  percent  slopes,  moderalely  eroded 
Westmoreland  channery  silt  loam.  3  to  20  percent  slooas,  severely  eroded 
Wesimoreland  channery  nil  loam,  20  to  30  perceni  slooes.  moderately  eroded 
Westmoreland  channery  nit  loam,  20  to  30  percent  slopes,  severely  eroded 


Soil  map  constructed  1961  by  Cartographic  Division, 
Soil  Conservation  Service,  USDA.  Irom  195?  aenal 
photographs,  ControHad  mosaic  based  on  Maryland 
olane  coordinate  sytlam,  Lambert  conformal 
conic  projection.  1927  North  American  datum. 


I  \ 


i 


Growth  Through  Agricultural  Progress 


GENERAL  BOOKBINDING  CO 


01 .  n 


2.V